Question

Crystal earns $5.50 per hour mowing lawns.

a. Write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns.
b. How much does Crystal earn if she works 3 hours and 45 minutes?

Answer 1

A. m=5.5(h)
B. m=20.63
$20.63

Answer 2

a :
`m=5.50h`

b : $20.625

Explanation:

Crystal earns $5.50 per hour mowing lawns.

a. Write a rule to describe how the amount of money m earned is a function of the number of hours h spent mowing lawns.

`m=5.50h`

when we will put the value of 'h' in the function, we will get the total money earned while working at the rate of $5.50 per hour.

b. How much does Crystal earn if she works 3 hours and 45 minutes?

45 minutes =
`(45)/(60)=0.75` hours.

So, total hours are
`3+0.75=3.75` hours

Hence, money earned in 3.75 hours =
`3.75*5.50=20.625` dollars.