Answers
Answer:
x = 50Step-by-step explanation:
12 = 24% . x
12 = 24/100 . x
12 = 0.24x
12/0.24 = x
50 = x
Answer:
50 is the answer.
Step-by-step explanation:
12÷.24=50
to double check ur work do 50x.24 and it comes out to 12
Related Questions
An insurance company reported that, on average, claims for a certain medical procedure are $942. An independent organization constructed a 95% confidence interval of ($930 , $950) for the average amount claimed for the particular medical procedure. What conclusion best evaluates the truthfulness of the number reported by the insurance company?
Answers
Answer:
Step-by-step explanation:
The question is incomplete. The complete question is:
An insurance company reported that, on average claims for a certain medical procedure are $942. an independent organization constructed a 95% confidence interval of ($930, $950) for the average amount claimed for the particular medical procedure. what conclusion best evaluates the truthfulness of the number reported by the insurance company?
a) with 95% certainty, the average claim for this medical procedure is $942.
b) with 95% certainty, the average claim for this medical procedure is not $942.
c) the confidence interval is consistent with an average claim of $942 for this medical procedure
Solution:
Confidence interval is used to express how confident we are that the population parameter that we are looking for is contained in a range of given values. Looking at the given confident interval, the lower limit is $930 and the upper limit is $950. We can see that the population mean, $942 lies within these values. The correct option would be
c) the confidence interval is consistent with an average claim of $942 for this medical procedure
3.
Simplify the expression
12a¹6f4
6a-166-4
3
3a³b4
9a46²
3a-46-2
Answers
Hello!
you want just the answer, so the answer is:
3a⁸b⁴
Brandon used an indoor rock-climbing wall seven times. His climbing times, in
minutes, are shown in this list.
35, 16, 17, 18, 13, 13, 14
Why is the median the most useful measure of central tendency for these
times?
A The median is not affected by an outlier.
B
The median is equal to the range of the data.
C The median is the time that occurs most often.
D The median is a larger.value than the mean of the data.
Answers
The median the most useful measure of central tendency for these
times: is A) The median is not affected by an outlier.
Why is the median the most useful measure?The median is the middle value in a set of data when the values are arranged in order. In this case, the median of Brandon's climbing times would be 16, because it is the fourth value when the times are arranged in order:
13, 13, 14, 16, 17, 18, 35
The median is the most useful measure of central tendency for these times because it is not affected by an outlier, which is a value that is much larger or smaller than the other values in the data set.
In this case, the value 35 is an outlier, because it is much larger than the other values. If we were to use the mean as the measure of central tendency, the outlier would greatly influence the result. However, the median is not influenced by outliers, and therefore provides a better representation of the typical climbing time for Brandon.
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Why is it desirable to have the explanatory variables spread out to test a hypothesis regarding B1 or construct confidence intervals about B1?
O So the mean of B1 is smaller
O So the mean of B1 is larger
O So the standard deviation of B1 is smaller
O So the standard deviation of B1 is larger
Answers
B1 should be smaller in order to spread out the explanatory components in order to test a B1 hypothesis or generate confidence intervals around a B1 hypothesis.
Though an explanatory variable is a hypothesis that is predicted to be able to explain the research outcomes, a response variable demonstrates the impact that is anticipated to come from the explanatory variable. The regression line has a slope that is B1.
In other circumstances, the alternative hypothesis is compared against the null hypothesis to determine whether the assertion that the population slope is not equal to Zero is valid. The value of b1 is to be construed as the average result altering when the explanatory variable is increased by one unit.
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Marco wants to know how much the other students in his mathematics class study. He recorded the data he collected in
the following table.
Time spent studying per week (in hours)
2.0
5.0
1.0
2.5
2.5
3.5
0.0
4.5
2.5
4.0
3.5
3.0
2.0
1.5
4.0
2.0
0.5
3.0
1.0
3.0
3.5
1.5
1. Construct a histogram for the data.
Answers
Answer:
Step-by-step explanation:
This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.
what ordered pair is a solution of 3x - y = 13
Answers
Answer:
x=6,. y=5. is the answer
A recent survey of people who eat salad suggest that 78% like tomatoes on their salad, 49% like cheese on their salad, and 36% like both tomatoes and cheese on their salad. Suppose a person who eats salad is selected at random, and find they like cheese on their salad. What is the probability that the person also likes tomatoes on their salad?
0.29
0.46
0.49
0.73
Answers
Answer:
D) 0.73
Step-by-step explanation:
If we take the number of people liking cheese on their salad and divide it by the people who like both we get our result.
36%/49%
=
.36/.49
=
.73 or D
The conditional probability that the person also likes tomatoes on their salad is of 0.73.
What is Conditional Probability?Conditional probability is the probability of one event happening, considering a previous event. The formula is:
\(P(B|A) = \frac{P(A \cap B)}{P(A)}\)
In which:
P(B|A) is the probability of event B happening, given that A happened.\(P(A \cap B)\) is the probability of both A and B happening.P(A) is the probability of A happening.In this problem, the events are given as follows:
Event A: Person likes cheese.Event B: Person likes tomatoes.Hence, the probabilities are given by:
\(P(A) = 0.49, P(A \cap B) = 0.36\).
The conditional probability is given by:
\(P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.36}{0.49} = 0.73\)
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In how many ways can a sample of 6 keyboards be selected so that exactly two have an electrical defect
Answers
Answer:
15ways
Step-by-step explanation:
This is a combination question since combination has to do with selection. Hence the number of ways sample of 6 keyboards can be selected so that exactly two have an electrical defect is expressed as;
6C2 = 6!/(6-2)!2!
6C2 = 6!/4!2!
6C2 = 6×5×4!/4!×2
6C2 = 6×5/2
6C2 = 30/2
6C2 = 15
Hence this can be done in 15ways
jimmy scored 49 goals in soccer this season. Tommy scored 7 times fewer goals. how many goals didi Tommy score?
Answers
Answer:
7 goals
Step-by-step explanation:
Jimmy scored 49 goals, and Tommy scored 7 times fewer than he did. We now know that an unknown number multiplied by 7 equals 49. This can be represented in an equation:
49/7 = x
x represents the amount of goals Tommy scored. Let's solve our equation to find the answer:
49/7 = 7
7 = x
Tommy scored 7 goals.
I hope this helps :)
Surface area and volume
Answers
length of slanted side:
sqrt(3^2 + 4^2) = 5
SA = 2(1/2)(8)(3) + 8(12) + 2(5)(12) =240
V = (1/2)(8)(3)(12) = 144
cuboid
SA = 2(7x6) + 2(7x5) + 2(6x5) = 214
V = 7x6x5 = 210
Graph the solution of the linear inequality and answer the questions below
Answers
The first step we need to take is to determine two points on the boundary line. To do that we will find the point for which x is 0 and the point for which y is 0. This is done below:
\(\begin{gathered} -2y=6\cdot0-18 \\ -2y=-18 \\ y=9 \end{gathered}\)The first point is (0,9).
\(\begin{gathered} -2\cdot0=6\cdot x-18 \\ -6\cdot x=-18 \\ x=\frac{-18}{-6}=3 \end{gathered}\)The second point is (3,0).
Since the signal is " less or equal", the line must be solid.
The two points are (0,9) and (3,0).
The region above the boundary line should be shaded.
Alesha went to the movies. A popcorn is $3 more than a soda. She purchased 1 popcorn and 2 sodas. She spent $21. How much is a popcorn?
Answers
Answer: a popcorn is $9
Step-by-step explanation:
soda is $6
Round 2.068 to the nearest 0.1 pound
Answers
Answer:
2.1
Step-by-step explanation:
Since you want to round 2.068 to the nearest 0.1 pound, 2.068 is close to these multiples of 0.1 :
1.9
2
2.1
Rounding to the nearest 0.1 gives you 2.1
The round-off to the number 2.068 will be 2.1 pounds.
What is rounding off the number?When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. For entire numbers as well as decimals at different places of hundreds, tens, tenths, etc., it is done.
A number can be rounded off to its lower value if the number after the decimal is between 0 and 4. The number will be rounded off to its higher value if the number after it is between 5 and 9.
The given number 2.068 will be rounded off to 2.1. Because it is closer to the value 2.1 instead of the number 2.0.
Therefore, the round-off to the number 2.068 will be 2.1 pounds.
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what is the value of x
X-3 / 2.8= 1.2
Answers
Answer:
x=6,36
Step-by-step explanation:
step 1 : cross multiply
x-3=3.36
x=3.36+3
x=6.36
12. After 2 hours, Morgan had earned $12.75 at her lemonade stand. After 5
hours, she had earned $44.25. Assuming a linear function, write an
equation in the form y=mx+b that shows the profit earned from selling
lemonade for x hours.
Answers
Answer:
y = 10.5x - 8.25
Step-by-step explanation:
m = (44.25 - 12.75)/(5 - 2) = 10.5
y = mx + b
y = 10.5x + b
12.75 = 10.5 × 2 + b
b = -8.25
y = 10.5x - 8.25
ok I really need help on this !
Answers
Answer:
height = 20 km
Step-by-step explanation:
Area of a trapezoid = (base + base / 2) x height
180 km^2 = (4 + 14 / 2) x height
180 km^2 = (18 / 2) x height
180 km^2 = 9 x height
height = 20 km
(fill in the numbers and work backwards)
What is the mode of the data represented in this line plot?
Answers
Find the slope of the tangent line to the graph of each function at x= -1
Answers
Given:
\(f(x)=3x^3+4x^2-10x+7\)Required:
To find the slope of the tangent line to the graph of each function at x= -1.
Explanation:
Consider the given function
\(f(x)=3x^3+4x^2-10x+7\)\(f^{\prime}(x)=9x^2+8x-10\)At x=-1,
\(\begin{gathered} f^{\prime}(-1)=9(-1)^2+8(-1)-10 \\ \\ =9-8-10 \\ \\ =-9 \end{gathered}\)Final Answer:
The slope is -9.
Linear relationship
Answers
Answer:
y=2x-1
Step-by-step explanation:
Consider two points, (-2,-5) and (-1,-3)
slope = ((-3)-(-5))/((-1)-(-2))=2/1=2
b=-5-(2)×(-2)=-1
putting it into y=mx+c,
y=2x-1
please help me this is hard
Answers
If you still have trouble solving these questions, use the website or app called Math-way!!
x-3=–5
answer:
subracting 3 from both sides (by rule ll)
= 3-(-5)=-2
now ,x=-2 (ans)
Which number is a reasonable estimate for 39x24?
Answers
Answer:
800
Step-by-step explanation:
I rounded 39 to 40 and 24 to 20 to get numbers that are eadult multiplied
then we can do 40*20 which is 800 using mental math
hope this helps <3
Answer:
1000
Step-by-step explanation:
4*2 = 8
40 * 20 = 800
4*5 = 20
40* 5 = 200
40 * 20 + 40 * 5 = 800 + 200 = 1000
40 * 25 = 1000
helpppp i’ll give brainlest
find the approximate area of the shaded region
Answers
Answer:
240.52 m square is your answer
Answer:
B
Step-by-step explanation:
area of square=20×21=420 m²
diagonal=√(20²+21²)=√(400+441)=√841=29
radius=29/2
area of circle=π×(29/2)²=841/4 π≈660.52 m²
area of shaded region=660.52-420=240.52 m²
The crew on a fishing boat caught four fish that weighed a total of 1,080 pounds. The
tarpon weighed twice as much as the amberjack
and the white marlin weighed twice
as much as the tarpon. The weight of the tuna was 5 times the weight of the
amberjack
How much did each fish weigh?
The amberjack weighed
pounds.
The tarpon weighed
pounds.
The marlin weighed
pounds.
The tuna weighed
pounds.
Kk
Answers
Answer:
Step-by-step explanation:
First, We highlight key details. Here we can use the information 1,080 pounds, tarpon weighed twice as much as the amberjack, the white marling weighed twice as much as the tarpon, and the tuna weighed 5 times the weight of the amber jack. And....I'm lost. Do you think you could help me figure it out by finding the first one? if you do that would be great, and I'll be sure to update my question. Thank you! ^^)
find the value of
tan 45º . tan- 30° tan 60°
Answers
Answer:
Find the exact value of tan 45º = 1/1 = 1.
Find the exact value of cos 30º = √3/2.
Find the exact value of csc 60º = 2√(3)/3
Step-by-step explanation:
math
Reuben made a shirt using 7/8yards of red fabric and 1/4yards of yellow fabric. How many more yards of red fabric did Reuben use?
Answers
Answer and Step-by-step explanation:
To find out how many more yards of red fabric Reuben used, we need to subtract the amount of yellow fabric from the amount of red fabric. Since the two fractions have different denominators, we need to find a common denominator before subtracting them. The least common multiple of 8 and 4 is 8, so we can rewrite both fractions with a denominator of 8:
7/8 - 1/4 = 7/8 - (1/4) * (2/2) = 7/8 - 2/8 = (7 - 2)/8 = 5/8
So, Reuben used 5/8 yards more red fabric than yellow fabric.
Help please!! This is timed. I’ll give brainliest also!
Answers
Answer: Relation 1 Function Relation 2 Not a function Realtion 3 Not a function Relation 4 Not a function
Step-by-step explanation: Ok this is a right answer
14.2 as a mixed number.
I need help on how to understand this, not just the answer. Please and thank you!
Answers
Answer:
14 1/5
Step-by-step explanation:
okay so first we will convert the decimal to fraction
14.2= 142/10= 71/5
now we convert improper fraction to mixed fraction:
71/5= long division method
14
5 |71
-5
21
20
1
quotient=14 remainder=1
now the remainder is gonna be as the numerator, the number which we divide the other number (5) would be denominator and the quotient is gonna be on the side
so...... 14 1/5
for an inverse variation, y=5 when x=9. The value of the constant of variation is
Answers
Answer:
45
Step-by-step explanation:
In an inverse variation situation, we have mathematical relationship between two variables which can be expressed by an equation in which the product of two variables is equal to a constant.
So in this case: x*y is a constant
since x=9 and y=5 so
xy = 45
the constant of variation is 45
For inverse function, we usually write it as \(y = \dfrac{45}{x}\)
The required solution of the value of the constant of variation is 45.
What is Inverse variation?Inverse variation is the relationships between variables that are represented in the form of y = k/x, where x and y are two variables and k is the constant value. It states if the value of one quantity increases, then the value of the other quantity decreases.
Given:
for an Inverse variation, y=5 when x=9
According to given question we have
Relationship between two variables which can be expressed by an equation in which the product of two variables is equal to a constant.
x×y =constant
x×y =k
Where k is a constant.
By put the value of
y=5 when x=9.
k= 9×5
k=45
Therefore, the required solution of the value of the constant of variation is 45.
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3.568409 rounded to the nearest hundredth
Answers
Answer:
3.57
Step - step
So the hundredth is the 6
you need to look the next number after 6
it is 8 which is more than 5 so
the hundredts number which is 6 need to plus one(+1)
3.56 + 0.01
= 3.57
and the number after seven No need to do it
The problem is attached.
Answers
Answer:
Cosec θ = – 25/24
Step-by-step explanation:
From the question given, we obtained the following information:
Tan θ = – 24/7
Cosec θ =?
Tan θ is negative in the forth quadrant.
Please see attached photo.
Tan θ = Opposite /Adjacent
Opposite = – 24
Adjacent = 7
Hypothenus = x
Thus, we can obtain the value of x by using the pythagoras theory as illustrated below:
x² = (–24)² + 7²
x² = 576 + 49
x² = 625
Take the square root of both side
x = √625
x = 25
Next, we shall determine Sine θ. This can be obtained as follow:
Opposite = – 24
Hypothenus = 25
Sine θ = ?
Sine θ = Opposite /Hypothenus
Sine θ = –24/25
Finally, we shall determine the Cosec θ. This can be obtained as follow:
Cosec θ = 1 /Sine θ
Sine θ = –24/25
Cosec θ = 1 ÷ –24/25
Cosec θ = 1 × – 25/24
Cosec θ = – 25/24
