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3 years ago

How do you solve this problem

Mathematics

1 answer:

torisob [31]3 years ago

4 0

Divide the price by the number of payments.

$15,480/36 = $430

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Students surveyed boys and girls separately to determine whether they wanted outdoor

vazorg [7]

Answer:

111 girls

Step-by-step explanation:

Given

Boys: Every 17 outdoor ≈ 20 indoor

Girls: 3:2 outdoor to indoor

First, we'll determine the ratio of outdoor to indoor for boys;

Recall that;

17 choose indoor while 20 choose outdoor;

The ratio of outdoor to indoor is;

20 : 17

Convert to fraction:

$\frac{20}{17}$

Let x represent number of boys that choose indoor when 85 boys chose outdoor;

The ratio of outdoor to indoor is;

x : 85

Convert to fraction

$\frac{x}{85}$

Equate both fractions

$\frac{20}{17} = \frac{x}{85}$

Multiply both sides by 85

$85 * \frac{20}{17} = \frac{x}{85} * 85$

$85 * \frac{20}{17} = x$

$\frac{1700}{17} = x$

$100 = x$

$x = 100$

This implies that when 85 chose outdoor, 100 chose indoor for boys;

Total = 100 + 85

Total = 185 boys surveyed

<em>Recall that the question says the same number of boys and girls were surveyed</em>

This implies that

Total Girls Surveyed = 185

For the girl ratio;

Outdoor to Indoor= 3:2

Number of girls that chose outdoor is as follows;

$Outdoor = \frac{3}{3 + 2} * Total$

$Outdoor = \frac{3}{3 + 2} * 185$

$Outdoor = \frac{3}{5} * 185$

$Outdoor = \frac{555}{5}$

$Outdoor = 111$

<em>Hence, the number of girls that chose outdoor is 111</em>

4 0

3 years ago

Rebecca drove 44 1/3 miles in 1 1/3 hours. What is the unit rate for miles per hour?

saul85 [17]

$unit\ rate=\frac{distance}{time}\\\\
distance=44\frac{1}{3} miles\\
time=1\frac{1}{3}hour\\\\
unit\ rate=\frac{44\frac{1}{3}}{1\frac{1}{3}}=\ \ \ | make\ improper\ fractions\\
\frac{\frac{133}{3}}{\frac{4}{3}}=\frac{133}{3}*\frac{3}{4}=\frac{133}{4}=33\frac{1}{4}\\\\
unit\ rate= 33\frac{1}{4}\frac{miles}{hour}
$

5 0

4 years ago

For his phone service, Dan pays a monthly fee of $23, and he pays an additional $0.05 per minute of use. The least he has been c

Otrada [13]

Answer:

23+0.05m=88.65

Step-by-step explanation:

0.05m=65.65

m=1,313

i think this is right, I am sorry if it is wrong...

8 0

3 years ago

Kevin can travel 22 1/2 miles in 1/3 hour. What is his average speed in miles per hour?

cestrela7 [59]

Divide the miles he traveled by the time it took him to travel it.

22 1/2 / 1/3

Multiply by the reciprocal of 1/3:

22 1/2 * 3/1

Convert 22 1/2 into an improper fraction:

45/2 * 3/1

Multiply the numerators and denominators together:

135/2

Divide:

67.5 or 67 1/2

So his average speed in miles per hour is 67 1/2.

3 0

3 years ago

Read 2 more answers

Pls help. Will mark brainliest to correct answer

Leokris [45]

Ur answer is either C or D

3 0

3 years ago