Answer:
90 children's tickets and 200 adult tickets were sold.
Step-by-step explanation:
Let's use the variables c and a to represent the number of children's and adult tickets sold, respectively.
From the problem, we know that:
The total number of tickets sold is 290: c + a = 290
The total revenue from ticket sales is $2250: 5c + 9a = 2250
We now have two equations with two unknowns. We can use substitution or elimination to solve for c and a. Here's one way to use elimination:
Multiply the first equation by 5 to get 5c + 5a = 1450
Subtract the above equation from the second equation to eliminate c: 5c + 9a - (5c + 5a) = 2250 - 1450
Simplify: 4a = 800
Solve for a: a = 200
Substitute a = 200 into the first equation to solve for c: c + 200 = 290
Simplify: c = 90
Therefore, 90 children's tickets and 200 adult tickets were sold.
recall the ordered data. 19 24 27 27 29 30 32 38 the 20th percentile will occur at a position between the first and second observations. in other words, between the first observation of 19 and the second observation of . to find the exact value of the 20th percentile, multiply the decimal portion from l20 by the difference between the first and second observations. then, add this value to the first observation. 20th percentile
The 20th percentile of the given data set is 22.
The following formula can be used to calculate the 20th percentile of the ordered data set:
(n+1)P = k
where n denotes the number of observations in the data set, P denotes the desired percentile (in decimal form), and k denotes the position of the kth observation corresponding to the desired percentile.
For the given data set, n = 8, P = 0.20, resulting in:
(8 + 1) * 0.20 = 1.6
Because k is not a whole number, we must use interpolation to determine the precise value of the 20th percentile.
This is accomplished by multiplying the decimal portion of k (0.6) by the difference between the first and second observations (24 - 19 = 5), then adding the result to the first observation (19).
0.6 * 5 + 19 = 22
So, the 20th percentile of the given data set is 22.
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Austin is paid a salary of $350 weekly. Find the Austin's earnings per year.
Answer:
$18234
Step-by-step explanation:
4. Caitlyn did 6/7 of the problems on her math quiz correctly and four incorrectly. She did
all the problems. How many were there?
Answer:
10 problems.
If she did 6/7 incorrectly, 1 was wrong 4-1 = 3
Then, add 3 to 7 and get 10
Answer:
28 problems
Step-by-step explanation:
If 6/7 were incorrect than 1/7 were correct.
1/7 = 4
4 x 7 = 28
28 problems
Hope this helps and have a have a great day!
Calculate the average rate of change for the given function, from x = −3 to x = 7.
Answer:
The average rate of change for the given function, from x = −3 to x = 7 will be:
Average rate = -5Step-by-step explanation:
Given the table
x f(x)
-3 50
3 10
7 0
As the interval is from x = -3 to x = 7.
so
at x₁ = -3, f(x₁) = 50
at x₂ = 7, f(x₂) = 0
Using the formula to determine the average rate of change at which the total cost increases will be:
Average rate = [f(x₂) - f(x₁)] / [ x₂ - x₁]
= [0 - 50] / [7-(-3)]
= [-50] / [7+3]
= -50 / 10
= -5
Therefore, the average rate of change for the given function, from x = −3 to x = 7 will be:
Average rate = -5simplify : -4x + 5y -2y +12y -8x
To simplify this expression you combine like terms, by adding or substracting coefficients of similar terms.
Similar terms:
-4x-8x= -12x
5y-2y+12y= 15y
Then, you get the next expression:
\(=-12x+15y\)A four-ounce serving of Campbell's Pork & Beans contains 5 grams of protein and 21 grams of carbohydrates A typical slice of "lite" rye bread contains 4 grams of protein and 12 grams of carbohydrates.
(a) I am planning a meal of "beans-on-toast" and I want it to supply 20 grams of protein and 80 grams of carbohy- drates. How should I prepare my meal?
(b)If I require A grams of protein and B grams of carbohy- drates, give a formula that tells me how many slices of bread and how many servings of Pork & Beans to use.
(a) To meet the desired 20g protein and 80g carbohydrate intake, prepare 4 servings of Pork & Beans and combine with 15 slices of "lite" rye bread.
(b) Bread: A/4 slices, Beans: B/21 - (A/4) * (12/21) servings.
(a) To prepare a meal of "beans-on-toast" that supplies 20 grams of protein and 80 grams of carbohydrates, you can use the following combination:
- Servings of Campbell's Pork & Beans: 4 servings.
- Slices of "lite" rye bread: 15 slices.
By using 4 servings of Campbell's Pork & Beans, you will obtain a total of 20 grams of protein (5 grams per serving) and 84 grams of carbohydrates (21 grams per serving).
Combining this with 15 slices of "lite" rye bread will contribute an additional 60 grams of carbohydrates (12 grams per slice) and 4 grams of protein (4 grams per slice). Thus, your meal will meet the desired nutritional requirements of 20 grams of protein and 80 grams of carbohydrates.
(b) The formula to determine the number of slices of bread and servings of Pork & Beans needed to meet specific protein and carbohydrate requirements is as follows:
- Number of slices of bread (Bread): A divided by 4.
- Number of servings of Pork & Beans (Beans): (B divided by 21) minus ((A divided by 4) multiplied by (12 divided by 21)).
Using this formula, you can calculate the appropriate quantities of bread and beans based on the desired protein (A) and carbohydrate (B) values.
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If A = (-2, -4) and B = (-8, 4), what is the length of ?  A. 14 units  B. 16 units  C. 10 units  D. 12 units
find the inverse of each equation
The inverse of the equation is determined as \(y = \log_{6}(-3x)\).
option D is the correct answer.
What is the inverse of the equation?The inverse of the equation is calculated by applying the following method;
The given equation;
y = - 6ˣ/3
The inverse of the equation is calculated as;
multiply through by 3
\(-3x = 6^y\)
Take the logarithm of both sides of the equation with base -6:
\(\log_{6}(-3x) = y\)
Finally, replace y with x to obtain the inverse equation as follows;
\(y = \log_{6}(-3x)\)
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1. Let C be between D and E. Use the Segment addition Postulate to solve for v.
DC = 2v-15
CE = 3v-8
DE = 27
By applying the segment addition postulate, the value of v = 7
According to the Segment Addition Postulate, it holds that if point C is between points D and E, therefore:DC + CE = DE
Given that:
\(DC = 2v-15\\\\CE = 3v-8\\\\DE = 27\)
Therefore, by substitution, we will have the following equation:\((2v-15) + (3v-8) = 27\)
Open the bracket and solve for the value of v.\(2v-15 + 3v-8 = 27\)
Add like terms\(5v - 23 = 27\)
Add 23 to both sides\(5v - 23+ 23 = 27 + 23\\\\5v = 50\)
Divide both sides by 5v = 10
Therefore, using the segment addition postulate, the value of v = 10
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is the following a linear equation or linear expression? 2-5(x-1)
The expression 2 - 5(x - 1) is a linear expression
How to determine the type of the expressionFrom the question, we have the following parameters that can be used in our computation:
2 - 5(x - 1)
The general rule is that
Equations are represented with =Expressions do not make use of the symbolUsing the above as a guide, we have the following:
2 - 5(x - 1) is a linear expression
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The surface of the triangle shown in the picture 15.1 is:
A) 6 B) 21 C) 14 D) 12
I'm not sure I've solved it right.
Answer:
The coreect answer o
is 14
Select the correct answer.
Which sentence correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14?
68% of the data points lie between 10 and 14.
68% of the data points lie between 8 and 12.
68% of the data points lie between 10 and 18.
68% of the data points lie between 10 and 16.
Answer:
68% of the data points lie between 10 and 18.
Step-by-step explanation:
one standard deviation to left of mean = 14 - 4 =10
one standard deviation to right of mean = 14 + 4 = 18
68% of data is in this region.
so the answer is 68% of the data points lie between 10 and 18.
k= y/x (3x-1)-2.75(x+2)
Answer:
k=
−2.75x2+3xy−5.5x−y/x
Step-by-step explanation:
Hi! so i see you need help with this problem let me help you and guide you through the steps :]
Let's solve for k.
k= y/x
(3x−1)−2.75(x+2)
Step 1: Multiply both sides by x.
kx=−2.75x2+3xy−5.5x−y
Step 2: Divide both sides by x.
kx/x
=
−2.75x2+3xy−5.5x−y/x
k=
−2.75x2+3xy−5.5x−y/x
Answer:
k=
−2.75x2+3xy−5.5x−y/x
jeremy washed 3/8 of the plates from dinner if 16 plates were used, how many plates did jeremy wash?
Answer:
jeremy washed:
3/8 * 16 = 6 plates.
Therefore, Jeremy washed 6 plates.
Step-by-step explanation:
Answer: straight up just 6.... i aint got nothin else to tell ya just 6
what is the slope of the line ?
Can someone please help
Helppp Pleaseeeee???
Answer:
Prism A
Step-by-step explanation:
5 times 4 times 4 is 100
7 times 3 times 3 is 63
The difference is 17
Please help with math! :)
Answer:
1. (10,-4)
2. 12
3. 108
Step-by-step explanation:
First find the cordinate by seing were the point lands on the graph
sense it is +10 right the x = 10, and it is 4 below the origin making it a negitive 4, so u get (10,-4)
The graph is measured 2 units per box and sence the sides are parallel to the axies you can count each square by 2, giving you the measuers of 12 units.
Now finally, The area of a triangle is A=1/2bh, we arlready have our base, and we just found our hight, so now we just have to plug it in.
A= 1/2 (12) (18)
12*18 = 216
A= 1/2 (216)
A= 108
And we are done!
Help please ...........
Answer:
8/11, 7/9, 4/5, 84% these are the answers to your question
Triangle PQR has vertives P(2, -4), Q(4, -5), and R(7, -2). It is translated 6 units left and 3 units up to produce Triangle P'Q'R'. Complete table.
The coordinates of the triangle P'Q'R' is P'(x, y) = (- 4, - 1), Q'(x, y) = (- 2, - 2) and R'(x, y) = (1, 1), respectively.
What are the locations of the vertices of the triangle after applying rigid transformations?
In this problem we know the three vertices of a triangle on a Cartesian plane and we must determine the coordinates of its image by applying rigid transformations. According to the statement, the vertices of the image are obtained by applying a translation formula:
P'(x, y) = P(x, y) + T(x, y) (1)
Where:
P(x, y) - Original pointP'(x, y) - Resulting point T(x, y) - Translation vectorIf we know that P(x, y) = (2, - 4), Q(x, y) = (4, - 5), R(x, y) = (7, - 2) and T(x, y) = (- 6, 3), then the coordinates of the vertices of the image are:
P'(x, y) = (2, - 4) + (- 6, 3)
P'(x, y) = (- 4, - 1)
Q'(x, y) = (4, - 5) + (- 6, 3)
Q'(x, y) = (- 2, - 2)
R'(x, y) = (7, - 2) + (- 6, 3)
R'(x, y) = (1, 1)
The coordinates of the triangle P'Q'R' is P'(x, y) = (- 4, - 1), Q'(x, y) = (- 2, - 2) and R'(x, y) = (1, 1), respectively.
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To pay for a home improvement project that totals $20,000, a homeowner is choosing between two different credit card loans with an interest rate of 9%. The first credit card compounds interest quarterly, while the second credit card compounds monthly. The homeowner plans to pay off the loan in 10 years.
Part A: Determine the total value of the loan with the quarterly compounded interest. Show all work and round your answer to the nearest hundredth. (4 points)
Part B: Determine the total value of the loan with the monthly compounded interest. Show all work and round your answer to the nearest hundredth. (4 points)
Part C: What is the difference between the total interest accrued on each loan? Explain your answer in complete sentences. (2 points)
Please only responded if you know how to do it, will give the brainiest to however answers it correctly
The total value of the loan with quarterly compounded interest is approximately $45,288.38, while the total value of the loan with monthly compounded interest is approximately $45,634.84. The difference in total interest accrued is approximately $346.46.
Part A: To determine the total value of the loan with quarterly compounded interest, we can use the formula for compound interest:
A = P(1 + r/n)^(nt),
where:
A is the total value of the loan,
P is the principal amount (initial loan amount),
r is the interest rate (in decimal form),
n is the number of times interest is compounded per year,
and t is the number of years.
Given:
P = $20,000,
r = 9% or 0.09,
n = 4 (quarterly compounding),
t = 10 years.
Substituting the values into the formula, we have:
A = 20000(1 + 0.09/4)^(4*10).
Calculating this value, we find:
A ≈ $45,288.38.
Therefore, the total value of the loan with quarterly compounded interest is approximately $45,288.38.
Part B: To determine the total value of the loan with monthly compounded interest, we follow the same formula but with a different value for n:
n = 12 (monthly compounding).
Substituting the values into the formula, we have:
A = 20000(1 + 0.09/12)^(12*10).
Calculating this value, we find:
A ≈ $45,634.84.
Therefore, the total value of the loan with monthly compounded interest is approximately $45,634.84.
Part C: The difference between the total interest accrued on each loan can be calculated by subtracting the principal amount from the total value of each loan.
For the loan with quarterly compounding:
Total interest = Total value - Principal
Total interest = $45,288.38 - $20,000
Total interest ≈ $25,288.38.
For the loan with monthly compounding:
Total interest = Total value - Principal
Total interest = $45,634.84 - $20,000
Total interest ≈ $25,634.84.
The difference between the total interest accrued on each loan is approximately $346.46.
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Mark wants to be a chef someday and would like to start learning to grow his own
ingredients in a garden. His mom gives him 12 square feet of space in the back yard to plant
a garden. He marks off % of it to save for a tomato plant and has the rest to use for onions.
Each onion bulb needs square feet of room to grow. How many onion bulbs can he
plant?
The area of the space available for onions is:n12 square feet - 0.12x square feet. number of onion bulbs Mark can plant is: (12 - 0.12x) / y
What is percentage?
Percentage is a way of expressing a number or proportion as a fraction of 100. It is represented by the symbol "%".
Mark has marked off a certain percentage of the 12 square feet to save for a tomato plant, which means the remaining space will be used for onions.
Let's say Mark marks off x% of the space for the tomato plant. That means he will have (100-x)% of the space for onions.
The area of the space reserved for the tomato plant is:
12 square feet x (x/100) = 0.12x square feet
The area of the space available for onions is:
12 square feet - 0.12x square feet
Let's say each onion bulb needs y square feet of room to grow. Mark can plant as many onion bulbs as can fit in the remaining space, which is:
(12 square feet - 0.12x square feet) / y
So the number of onion bulbs Mark can plant is:
(12 - 0.12x) / y.
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Which fraction is the product of 5/4 x 6?
Answer:
15 x /2
Step-by-step explanation:
what is 7 less than the difference between j and 4
Answer:
(j - 4) - 7
Step-by-step explanation:
[] Underlined means that part of the sentence was turned into an expression in the next step
what is 7 less than the difference between j and 4
what is 7 less than the (j - 4)
(j - 4) - 7
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
In a psychology class, 57 students have a mean score of 87.1 on a test. Then 10 more students take the test and their
mean score is 68.6. What is the mean score of all of these students together? Round your answer to one decimal place if
necessary.
The mean score of all of these students together, rounded to 1 decimal place is 84.3
What is the mean score in each case?
The mean score in each test taken is the total scores of all students that took the test divided by the number of students, in essence, the total score is determined as the mean score multiplied by number of students
total score for 57 students=87.1*57
total score for 57 students= 4,964.7
total score for 10 students=68.6*10
total score for 10 students=686.0
mean score of all of these students together=(4,964.7+686.0)/(57+10)
mean score of all of these students together= 84.3
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Why do I need to pay to see answers....
I just need like 5 answers and I'm never coming on here again.
Answer:
same problem with me.That's what happened
Please answer this question! Would be a big help thankyou ever so much!!
Simplify fully
Optional working
3a² + 8a + 5-a² +4a-4
Answer:
Answer:
The simplified expression is,
\(2a^2 +12a +1\)
Step-by-step explanation:
\(3a^2 + 8a+5-a^2+4a-4\\3a^2-a^2+8a+4a+5-4\\2a^2 +12a +1\)
Which property is not used to simplify the following expression?
(x+2)-5-7 = 5(x + 2) -7
=
= (5x + 10) – 7
= 5x + (10 – 7
=5x+3
O commutative property of addition
O commutative property of multiplication
associative property of addition
O
O distributive property
The commutative property of addition is not used. Therefore, option A is the correct answer.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
We know there are three types of properties they are associative property which is (a+b) + c = a + (b+c), Distributive property which is a(b+c) = ab + ac, Commutative property which is a + b = b + a.
Given (x+2).5 - 7.
5.(x+2) = 7 (it is commutative property of multiplication).
= (5x + 10) - 7 (It is distributive property).
= 5x + (10 - 7) ( it is associative property of addition).
= 5x + 3
Therefore, option A is the correct answer.
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in 2009 Larry's gross pay was $275,800 in that year the maximum taxable for Social Security was 118500 and the Social Security was 62.2%.
Based on the maximum taxable amount for social security in 2009, and the social security tax rate, the social security tax that Larry paid was $7,347.
How much did Larry pay in social security taxes?The total amount paid by Larry as Social security tax can be found as;
= Maximum amount allowable for social security tax x Social security tax rate
The social security tax rate was 6.2% not 62.2%.
The social security tax was therefore:
= 118,500 x 6.2%
= $7,347
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If b = -2, what is 3b-7 ?