Answer:
The solution of the equation is y = 6/19
Step-by-step explanation:
Seems the division signs are omitted. The correct equation is given below.
The equation is:
3/4 (20y − 8) + 5 = 1/2 y + 1/4 (20y + 8)
1. Distribute 3/4 and 1/4, so that we get
15y - 6 + 5 = 1/2y + 5y + 2
2. Combine like terms, we get
15y - 1 = 11/2 y +2
Now, we will collect like terms
15y - 11/2 y = 2 + 1
This can properly written as
\(15y - \frac{11}{2}y = 2 + 1\)
\(\frac{30y - 11y}{2} = 3\)
\(\frac{19y}{2} = 3\)
Then,
\(19y = 2 \times 3\)
19y = 6
∴ y = 6/19
Hence, the solution of the equation is y = 6/19.
Answer:
6/9
Step-by-step explanation:
E) Si una mujer en Suiza gana 1300 francos, ¿cuánto gana un hombre en el mismo puesto y con la misma categoría profesional? f) Un hombre, por término medio, gana en España un sueldo mensual de 1102 euros netos. ¿Cuánto ganaría si fuese mujer?
Answer:
Para responder esta pregunta, necesitamos utilizar el gráfico que se ve en la imagen de abajo.
En dicho gráfico, se presenta el porcentaje que gana, en promedio, una mujer comparado con lo que ganaría un hombre en el mismo puesto.
a) Si una mujer en Suiza gana 1300 francos, ¿cuánto gana un hombre en el mismo puesto y con la misma categoría profesional?
Viendo el gráfico, podemos ver que en Suiza una mujer gana el 68% de lo que gana un hombre.
Entonces, si un hombre gana una cantidad X, tendremos:
X = 100%
y la mujer gana 1300 francos, que es el 68%, entonces podemos escribir:
X = 100%
1300 francos = 68%
Ahora podemos tomar el cociente entre esas dos ecuaciones, para así obtener:
X/(1300 francos) = (100%/68%)
Ahora podemos resolver esto para X:
X = (100%/68%)*(1300 francos) = 1911.76 francos.
Un hombre en la misma posición ganaría 1911.76 francos.
b) Un hombre, por término medio, gana en España un sueldo mensual de 1102 euros netos. ¿Cuánto ganaría si fuese mujer?
Viendo el gráfico, podemos ver que una mujer en España gana el 67% de lo que ganaría un hombre en la misma posición.
El sueldo del hombre es 1102 euros, y en este caso, esto es el 100%, entonces:
1102 euros = 100%
Y sea X el sueldo de la mujer, el cual sabemos que representa el 67%, entonces escribimos:
X = 67%
Así, tenemos dos ecuaciones:
X = 67%
1102 euros = 100%
Tomando el cociente, obtenemos:
X/(1102 euros) = (67%/100%)
Resolviendo para X obtenemos:
X = (67%/100%)*(1102 euros) = 738.34 euros
Una mujer en la misma posición ganaría 738.34 euros.
Research has shown that IQ scores have been increasing for years (Flynn, 1984, 1999). The phenomenon is called the Flynn effect and the data indicate that the increase appears to average about 7 points per decade. To examine this effect, a researcher obtains an IQ test with instructions for scoring from 10 years ago and plans to administers the test to a sample of n = 25 of today’s high school students. Ten years ago, the scores on this IQ test produced a standardized distribution with a mean of μ = 100 and a standard deviation σ = 15. If there actually has been a 7-point increase in the average IQ during the past 10 years, then find the power of the hypothesis test for each of the following.
a. The researcher uses a two-tailed hypothesis test with α = .05 to determine if the data indicate a significant change in IQ over the past 10 years.
b. The researcher uses a one-tailed hypothesis test with α = .05 to determine if the data indicate a significant increase in IQ over the past 10 years.
A. The power of the two-tailed hypothesis test with α = .05 is 0.53.
B. The power of the one-tailed hypothesis test with α = .05 is 0.95.
What is hypothesis test?A hypothesis test is used to make decisions about a population based on sample data. It involves specifying a null hypothesis, collecting data, and then assessing the data to either reject or accept the null hypothesis.
A. The power of the two-tailed hypothesis test is calculated using the formula:
Power=
1- β=1- (1-α)\(^{1/2}\)
=1- (1-0.05)\(^{1/2}\)
=0.525
=0.53
This means that the researcher has an 53% chance of correctly rejecting the null hypothesis that there has been no change in the IQ over the past 10 years.
B. The power of the one-tailed hypothesis test is calculated using the formula:
Power=
1- β=1- α
=1- 0.05
= 0.95
This means that the researcher has a 95% chance of correctly rejecting the null hypothesis that there has been no increase in the IQ over the past 10 years.
This is a higher power than the two-tailed test because the one-tailed test focuses on detecting an increase in the IQ, while the two-tailed test can detect both an increase or decrease in the IQ.
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is 7.69 x 24^8 in scientific notation
Reason:
The 24 needs to be changed to a 10 for it to be in scientific notation.
The template for scientific notation is \(a * 10^b\) where \(0 \le |a| < 10\)
So for example, \(1.23 \times 10^4\) is in scientific notation.
PLZ HELP...........................................
Answer:
y=x-2+√3
Step-by-step explanation:
I'm not sure keep it up
Q9) Rashmi obtains 480 marks out of 600. Rajan obtains 560 marks out of 700. Whose performance is better?
Answer:
Step-by-step explanation:
Let us first make the denominators equal, so
600 x 700 = 420000
\(\frac{480}{600} * \frac{700}{700} \\\\= \frac{336000}{420000}\)
Similarly,
\(\frac{560}{700} * \frac{600}{600} = \frac{336000}{420000}\)
By comparison, both of them are equal.
Hope It Helps!
ou are making a coffee table with a glass top surrounded by a cherry border. the glass is 3 feet by 3 feet. you want the cherry border to be a uniform width. you have 7 square feet of cherry wood to make the border. what is the width of the border?
The width of the border is 1/2 feet
How to determine the widthFrom the information given, we have that;
Cherry wood of area to border and surrounded glass of area 9 square feet.
The combined area will be area of glass + area of the border made from cherry wood
The total area of coffee table would be ;
= 9 + 7 = 16 square feet.
Since the center glass piece is a square thus the surrounding border of cherry wood also would be of square shape.
So each side of the square is √16 = 4 feet
Outside of cherry border has 4 feet length and width while the inside of cherry border, which is same as the length and width of glass is 3 feet.
The difference is 4 -3 = 1 feet
Since border is on both sides therefore the width of the border= 1/2 feet
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answer in scientific notation (7.2x10^3)x(9.7x 10^6)
Answer:
6.984 x 10^10
Step-by-step explanation:
(7.2 x 10^3) x (9.7 x 10^6)
7.2 x 9.7 = 69.84
3+6=9
69.84 x 10^9
The first number has to be between 1 and 10 and it can't be a 0. So you move it to the left and add 1 to the exponent.
6.984 x 10^10
Find the slope of the line through the points (10, 4) and (4, 15)
FIRST TO ANSWEEER GETS BRANLIEST PLZ HELP
Answer:
I think it's 11/6 I think so
All mortgages must be paid monthly.
A. True
B.False
Answer:
A
Step-by-step explanation:
Graph a parabola whose vertex is at (3,5)(3,5)left parenthesis, 3, comma, 5, right parenthesis with yyy-intercept at y=1y=1y, equals, 1.
Using the given information we found that the equation of the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
How to get the equation of the parabola?
For a parabola with vertex (h, k), the equation is:
y = a*(x - h)^2 + k
Here the vertex is (3, 5), so the equation is:
y = a*(x - 3)^2 + 5
And the y-intercept is y = 1, this means that:
1 = a*(0 - 3)^2 + 5
1 = a*9 + 5
1 - 5 = a*9
-4/9 = a
So the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
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how to decompose 9/10 in 3 ways
if you roll two fair six-sided dice, what is the probability that the sum is 4 44 or higher?
The probability of rolling two fair six-sided dice and getting a sum of 4 or higher is 11/12
To calculate the probability of rolling two fair six-sided dice and getting a sum of 4 or higher, we first need to calculate the total number of possible outcomes.
The number of possible outcomes when rolling two dice is 6 × 6 = 36, since each die has 6 possible outcomes.
Now, let's find the number of outcomes that result in a sum of 4 or higher. We can do this by listing all the possible outcomes:
Sum of 4: (1, 3), (2, 2), (3, 1) = 3 outcomes
Sum of 5: (1, 4), (2, 3), (3, 2), (4, 1) = 4 outcomes
Sum of 6: (1, 5), (2, 4), (3, 3), (4, 2), (5, 1) = 5 outcomes
Sum of 7: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1) = 6 outcomes
Sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), (6, 2) = 5 outcomes
Sum of 9: (3, 6), (4, 5), (5, 4), (6, 3) = 4 outcomes
Sum of 10: (4, 6), (5, 5), (6, 4) = 3 outcomes
Sum of 11: (5, 6), (6, 5) = 2 outcomes
Sum of 12: (6, 6) = 1 outcome
Therefore, the number of outcomes that result in a sum of 4 or higher is 3 + 4 + 5 + 6 + 5 + 4 + 3 + 2 + 1 = 33.
Therefore, the probability of rolling two fair six-sided dice and getting a sum of 4 or higher is 33/36 = 11/12.
To find the probability of getting a sum of 44 or higher, we need to subtract the probability of getting a sum of 43 or lower from 1:
Sum of 2: (1, 1) = 1 outcome
Sum of 3: (1, 2), (2, 1) = 2 outcomes
Sum of 4: (1, 3), (2, 2), (3, 1) = 3 outcomes
Sum of 5: (1, 4), (2, 3), (3, 2), (4, 1) = 4 outcomes
Sum of 6: (1, 5), (2, 4), (3, 3), (4, 2), (5, 1) = 5 outcomes
Sum of 7: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1) = 6 outcomes
Sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), (6, 2) = 5 outcomes
Sum of 9: (3, 6), (4, 5), (5, 4), (6, 3) = 4 outcomes
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I dont know this someone please answer this and show work and FAST! My teacher will call on me soon
Answer:
I can' see this. Can you show it closer? Please!
Step-by-step explanation:
Answer:
ok maybe itll work with this???
Step-by-step explanation:
file:///C:/Users/apple/Downloads/13f2bddc55b71689635395017a167da1%20(1).pdf
I hope it workksss
In a survey of 200 people, 32% had a son, 30% had a daughter, and 11% had both a sonand a daughter. What is the conditional probability that a person who has a son also hasa daughter? Round to the nearest whole number.
We have the following probabilites:
\(\begin{gathered} P(\text{had a son)=P(s)}=0.32 \\ P(\text{had a daughter)}=P(d)=0.3 \\ P(\text{had both son and daughter)}=P(d\cap s)=0.11 \end{gathered}\)Following the definition of conditional probability:
\(P(A|B)=\frac{P(A\cap B)}{P(A)}\)In this case, we want to calculate the conditional probability that a person has a daughter given that he/she already has a son. Then, the probability is:
\(P(d|s)=\frac{P(d\cap s)}{P(s)})=\frac{0.11}{0.32}=0.34\)therefore, the conditional probability that a person who has a son also has a daughter is 34%
mrs jones gave 1/5 of a cake to her neighbour. she then sliced the remainder into 3 pieces for her 3 children, ken, ron and david, in the ratio 1 : 3 : 4. what is the fraction of the cake was ron's pieces
The fraction of the cake that was ron's pieces is 1/5.
What is the fraction of the cake was ron's pieces?Ratio demonstrates how many times one number can fit into another number. Ratios contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point (A) to another data point (B).
Since Mrs Jones gave 1/5 of a cake to her neighbour, the remaining fraction will be:
= 1 - 1/5
= 4/5
The fraction of the cake that was ron's pieces will be:
= 2/(1+3+4) × 4/5
= 2/8 × 4/5
= 8/40
= 1/5
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z=2 = 27
_____ __
4 12
Answer:
hmmmmmm
i believe that the answer is _
because of _
(i helped w/ your other one lol)
Step-by-step explanation:
38) Paula is making a pair of drapes for her dining room. Each of the four drapery panels, when completed, measures 8 feetlang by 4 feet wide. What is the total area of the four drapery panels?
pls help if I see a off topic answer or a silly joke I will report and make sure u get in trouble so do not joke around.
Answer:
128 ft^2
Step-by-step explanation:
each drapery has an area of 8*4 feet^2 and there are four panes so the total area is 8*4*4= 128
find the measure of the missing angle
a=
Answer:
Here
a+34=90
=90-34
=56
Ans is 56 degree
1 individuals in a tetrahybrid cross is AaB-bCcDd. Assuming independent assortment of these four genes, what are the probabilities that F2 offspring will have the following genotypes?
1. AABBCCDD: The probability of this happening is \(1/16\), since each parent would need to contribute a dominant allele for each gene.
2. AABBCcDD: This genotype can be produced in two ways:
a) If both parents are homozygous dominant for A and B, heterozygous for C, and homozygous dominant for D.
The probability of this happening is = 1/128.
b) If one parent is homozygous dominant for A and B, heterozygous for C, and homozygous dominant for D, and the other parent is heterozygous for A and B, homozygous dominant for C, and heterozygous for D.
3. The probability of this happening is 1/32.
AaBbCcDd : The probability of this happening is 1/256.
4. aaBBCcDD - This genotype can be produced in two ways:
a) If both parents are homozygous recessive for A, homozygous dominant for B, heterozygous for C, and homozygous dominant for D. The probability of this happening is 1/128.
b) If one parent is homozygous recessive for A, homozygous dominant for B, heterozygous for C, and homozygous dominant for D, and the other parent is heterozygous for A, homozygous dominant for B, homozygous dominant for C, and heterozygous for D.
The probability of this happening is 1/32.
To solve this problem, we need to use the principles of probability and Punnett squares.
For a tetrahybrid cross, we need to consider the four genes independently and combine the probabilities of each gene's alleles.
Assuming that A, B, C, and D are dominant alleles, and a, b, c, and d are recessive alleles, we can create a Punnett square for each gene, which would look like this:
A | A | a | a
---|-----|-----|----
B | B | b | b
---|-----|-----|----
C | C | c | c
---|-----|-----|----
D | D | d | d
Each box in the Punnett square represents a possible combination of alleles from the two parents.
For example, the top-left box represents offspring that inherit an A allele from the mother and an A allele from the father.
We can use these Punnett squares to calculate the probabilities of each genotype in the F2 offspring.
AABBCCDD - This genotype can only be produced if both parents are homozygous dominant for all four genes.
The probability of this happening is \((1/2)^4 = 1/16\) , since each parent would need to contribute a dominant allele for each gene.
AABBCcDD - This genotype can be produced in two ways:
a) If both parents are homozygous dominant for A and B, heterozygous for C, and homozygous dominant for D.
The probability of this happening is\((1/2)^4 * 1/2 * (1/2)^3 = 1/128\)
b) If one parent is homozygous dominant for A and B, heterozygous for C, and homozygous dominant for D, and the other parent is heterozygous for A and B, homozygous dominant for C, and heterozygous for D.
The probability of this happening is\(2 * (1/2)^4 * 1/2 * 1/2 * 1/2 = 1/32\)
AaBbCcDd - This genotype can be produced in 16 ways, since each gene can be inherited in two different ways (dominant or recessive).
The probability of this happening is \((1/2)^8 = 1/256.\)
aaBBCcDD - This genotype can be produced in two ways:
a) If both parents are homozygous recessive for A, homozygous dominant for B, heterozygous for C, and homozygous dominant for D. The probability of this happening is\((1/2)^4 * 1/2 * (1/2)^3 = 1/128.\)
b) If one parent is homozygous recessive for A, homozygous dominant for B, heterozygous for C, and homozygous dominant for D, and the other parent is heterozygous for A, homozygous dominant for B, homozygous dominant for C, and heterozygous for D.
The probability of this happening is \(2 * (1/2)^4 * 1/2 * 1/2 * 1/2 = 1/32.\)
Note that we have assumed independent assortment of the four genes, which means that the inheritance of one gene does not affect the inheritance of another gene.
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does the residual plot indicate that the regression equation is a good model or a bad model of the data? why or why not?
The residual plot can provide valuable insights into the adequacy of the regression model, and whether any modifications or alternative models may be needed to better explain the data.
A residual plot is a visual tool for evaluating a regression model's goodness-of-fit. The residuals—that is, the discrepancies between the observed and expected values—are plotted against the predicted values.
The residuals should be randomly dispersed around zero and the plot should show no clear patterns or trends if the regression equation accurately models the data.
The residuals may show patterns or trends in the plot if the regression equation is a poor model of the data, which would indicate that the model is failing to account for some crucial characteristics of the data.
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Solve the following inequality and show answer on number line: 5x > 60
Answer:
5x>60
x>60/5
x>12
number line
hope it helps.
A sphere is inscribed in a cube with edge length 9 inches. Then a smaller cube is inscribed in the sphere. How many cubic inches are in the volume of the inscribed cube
To find the volume of the inscribed cube, we need to determine the edge length of the cube first. Let's denote the edge length of the inscribed cube as "x".
In a cube inscribed in a sphere, the diameter of the sphere is equal to the diagonal of the cube. Therefore, the diameter of the sphere is equal to the space diagonal of the large cube, which is given as 9 inches.
The space diagonal of a cube with edge length "a" can be found using the Pythagorean theorem:
Diagonal² = a² + a² + a²
Diagonal² = 3a²
Since the diameter of the sphere is 9 inches, we can write:
3a² = 9²
3a² = 81
a² = 81 / 3
a² = 27
a = √27
a = 3√3
Now we know the edge length of the large cube, which is 3√3 inches. The volume of a cube is given by V = a³, where "a" is the edge length.
Volume of the inscribed cube:
V = (3√3)³
V = 3³ * (√3)³
V = 27 * 3
V = 81 cubic inches
Therefore, the volume of the inscribed cube is 81 cubic inches.
The volume of the cube inscribed in the sphere, given the sphere is inscribed in a cube with an edge length of 9 inches, is 81 cubic inches.
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What are the next letters in the following pattern 2,-3,4,-5
The next letters in the pattern are 6 and -7.The given pattern alternates between positive and negative numbers. By observing the pattern, we can determine the next numbers in the sequence.
The first number, 2, is positive. The second number is obtained by taking the negative of the previous number and subtracting 1. Therefore, -2 - 1 = -3.The third number is positive and is obtained by taking the absolute value of the previous number and adding 1. Therefore, |-3| + 1 = 4.
The fourth number is negative and is obtained by taking the negative of the previous number and subtracting 1. Therefore, -4 - 1 = -5.
Following this pattern, the next number will be positive and obtained by taking the absolute value of the previous number and adding 1. Therefore, |-5| + 1 = 6.
The next number after 6 will be negative and obtained by taking the negative of the previous number and subtracting 1. Therefore, -6 - 1 = -7.
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a bag contains 10 red marbles, the ratio of red marbles to blue marbles is 5 to 1 find the numbers of blue marbles in the bag
Answer:
The Answer is 2 blue marbles.
Step-by-step explanation:
The numbers of blue marbles in the bag will be 2.
What is proportion ?
A proportion is an equation based on the equality of two ratios.
Here it is given that :
a bag contains = 10 red marbles
the ratio of red marbles to blue marbles is = 5:1
That is :
5 ratio of marbles is equals to = 10 marbles
now,
1 ratio of marbles is equals to = 2 marbles
Therefore, the numbers of blue marbles in the bag will be 2.
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One limitation of pre-operational thought is the belief that non-living objects have life-like qualities?
Answer:
Animism
Step-by-step explanation:
Animism is often a major idea or thought which is developed in a child preooperational stage according to paiget's theory of cognitive development where a child's learning is driven and derived from by symbols. At this stage, a child often relates with their toys, and other inanimate objects they come across as though they were real, manipulating and transforming them to form different things including relating with these manipulated objects like they were living. This is because at this stage, a child cannot use cognitive or logic to make distinctions.
What is the value of m in the equation below?
2 m - 3 = - m + 6
Answer: m=3
2m-3= -m+6
3m=9
m =3
Hope this helps!
Kim rode her bicycle 135 miles in 9 weeks, riding the same distance each week. Eric rode his bicycle 102 miles in 6 weeks, riding the same distance each week. Which statement correctly compares the number of miles per week they rode?
A - Eric rode 222 more miles per week than Kim rode.
B - Kim rode 333 more miles per week than Eric rode.
C - Kim rode 111111 more miles per week than Eric rode.
D - Eric rode 171717 more miles per week than Kim rode.
Answer:
Eric rode 2 more miles per week than Kim rode.
Step-by-step explanation:
Find how many miles per week Kim rode by dividing the number of miles she rode by the number of weeks:
135/9
= 15
Find how many miles per week Eric rode:
102/6
= 17
So, Kim rode 15 miles per week and Eric rode 17 miles per week.
The answer is Eric rode 2 more miles per week than Kim rode.
Answer:
A.
Step-by-step explanation:
Grade 8
B.
A completely full gasoline tank is drained at a constant rate, as shown in the graph below-
Gasoline in the Tank
Over Time
50
40
30
Remaining Gasoline
(in gallons)
10
0 1 2 3 4 5 6 7 8 9 10
Amount of Time (in minutes)
Zhich statement best describes the rate of change for the gasoline in the tank?
There were 5 gallons of gasoline drained C. There were 0 gallons of gasoline in tl
each minute.
tank after 9 minutes.
There were 40 gallons of gasoline in the D. There were 45 gallons of gasoline in
tank after 1 minute.
tank when it was full.
Answer:
A gallons and a half a minute
Step-by-step explanation:
9 minutes it fills up a gallons and a half
a church offering last sunday was $6,500.one year ago it was $4,800.last sunday's offering is what percent of the one a year ago?round to the nereast percent
Answer:
135%
Step-by-step explanation:
To find the percentage of last Sunday's offering compared to the offering from a year ago, we can use the following formula:
percentage = (last Sunday's offering / offering from a year ago) x 100%
Plugging in the given values, we get:
percentage = (6,500 / 4,800) x 100%
percentage = 1.35416666667 x 100%
percentage = 135.42%
Rounding to the nearest percent, we get:
percentage = 135%
Therefore, last Sunday's offering was 135% of the offering from a year ago.
Answer:62.5%
I think this is the answer it might not be, if not i am so sorry.
There are 5 dessert courses in a restaurant. They will be presented two at a time in an order. How many different arrangements are there?
Answer:
3 I think.
Step-by-step explanation:
5 would be broken up to 2 groups of 2 and 1 group of 1.
In 20 different ways 5 dessert courses can be arranged taken 2 at a time.
What are permutation and combination?A permutation is an arrangement of things where order matters, AB and BA are two different permutations.
The combination is a selection of things where order does not matter, AB and BA are the same combinations.
Given, There are 5 dessert courses in a restaurant and they will be presented two at a time in an order.
Here we have to use permutation as order matters.
Now, the permutation of 5 different things taken 2 at a time is,
= \(^5P_2\).
= 5!/(5 - 2)!.
= 5!/3!.
= 5 × 4.
= 20 different ways.
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