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Marina CMI [18]
3 years ago
12

Steve earns extra money babysitting. He charges $37.00 for 4 hours and $64.75 for 7 hours. Let x represent the number of hours S

teve babysits and y represent the amount he charges
Mathematics
1 answer:
siniylev [52]3 years ago
5 0

Answer:$6.25

Step-by-step explanation:we have that

x------------------> represent the number of hours Steven babysits

y----------------- > represent the amount he charges

for x=6 hours

y=$37.50 ----------------> y/x=37.5/6=6.25

for x=8 hours

y=$50---------------------> y/x=50/8=6.25

therefore

y=6.25x

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Which of the following sets of lengths can Sean use to make a right triangle?
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Answer:

{8 cm, 15 cm, 17 cm}

Step-by-step explanation:

we know that

The length sides of a right triangle must satisfy the Pythagoras Theorem

so

c^2=a^2+b^2

where

c is the greater side (the hypotenuse)

a and b are the legs (perpendicular sides)

<u><em>Verify each case</em></u>

case 1) we have

{5 cm, 15 cm, 18 cm}

substitute in the formula

18^2=5^2+15^2

324=250 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 2) we have

{6 cm, 12 cm, 16 cm}

substitute in the formula

16^2=8^2+12^2

256=208 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 3) we have

{5 cm, 13 cm, 15 cm}

substitute in the formula

15^2=5^2+13^2

225=194 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 4) we have

{8 cm, 15 cm, 17 cm}

substitute in the formula

17^2=8^2+15^2

289=289 ----> is true

therefore

Sean can make a right triangle with this set of lengths

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3 years ago
If each dozen cost $3.70 what should be the selling price be if he wants to make an 80% profit?​
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Answer: $6.66

Explanation:
3.70 multiplied by 0.80 = 2.96.
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Answer:

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It should be noted that a population means the entire group that a researcher wants to draw conclusions about.

<h3>What is a population?</h3>

Your information is incomplete s the data is not provided. Therefore, an overview will be given.

In statistics, a population refers to a set of similar items which is of interest for an experiment.

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