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anygoal [31]
4 years ago
6

Raj polled 100 students in his class to compare the number of hours that teen boys and girls played video games each week. The r

esults of his survey are shown below. Which statement about his data sets is true?
A-The average boy plays 8.5 hours more per week than the average girl.
B-The average boy plays 2 hours more per week than the average girl.
C-The average boy plays the same amount of time per week as the average girl.
D-The average boy plays 6 hours more per week than the average girl.
Mathematics
2 answers:
netineya [11]4 years ago
8 0
I think the answer would be C
antoniya [11.8K]4 years ago
7 0

Answer:

a

Step-by-step explanation:

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It costs a dollars for an adult ticket to a reggae concert
brilliants [131]

the answer is C.

12a -18s =36

(12 adult tickets= 12a) - (18 student tickets =18s) =$36

5 0
4 years ago
When you buy an item on which sales tax is charged,the total cost is calculated by the formula T=P+s/100p where T is the total c
Gennadij [26K]

Given:

The formula for total cost is

T=p+\dfrac{s}{100}p

where, p is the price of item and s is the sales tax rate (as a percent).

You pay $14.77 for an item priced at $14.

To find:

The the tax rate.

Solution:

You pay $14.77 for an item priced at $14. So,

Total cost (T) = $14.77

Price of item (p) = $14

Putting T=14.77 and p=14 in given formula, we get

14.77=14+\dfrac{s}{100}(14)

14.77-14=\dfrac{s}{100}(14)

0.77=\dfrac{s}{100}(14)

Multiply both sides by 100.

77=14s

Divide both sides by 14.

\dfrac{77}{14}=s

5.5=s

Therefore, the tax rate is 5.5%.

7 0
3 years ago
Y=-x^2<br> y=-7x^2<br> y=2/3x^2
valentinak56 [21]
Y = -x²
y = -7x²
<u>y = 2/3x²</u>
<u>3y</u> = <u>-7 1/3x²
</u> 3         3
  y = -2 4/9x
7 0
3 years ago
A scientist has two solutions, which she has labeled Solutuion A and Solution B. Each contains salt. She knows that Solutuion A
ratelena [41]

a = amount (in oz) of solution A

b = amount of solution B

The scientist wants a mixture of 110 oz, so

a + b = 110

Solution A consists of 65% salt, so each ounce of solution A contributes 0.65 oz of salt; similarly, each ounce of B contributes 0.9 oz. The mixture is supposed to consist of 75% salt, which amounts to 0.75 * (110 oz) = 82.5 oz of salt. So

0.65 a + 0.9 b = 82.5

Solve for a and b:

b = 110 - a

0.65 a + 0.9 (110 - a) = 82.5

0.65 a + 99 - 0.9 a = 82.5

0.25 a = 16.5

a = 66  ==>  b = 44

5 0
3 years ago
Find the slope of 9x=3y+5
qaws [65]
<u>9x</u> = <u>3y + 5</u>
 9         9
x = 1/3y + 5/9
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3 years ago
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