Question

Peggy has saved $9,215. If she is paid $45 an hour, about how many hours did she work?

Answer 1

Answer: 204.7 hours

Step-by-step explanation: you divide $9,215 by $45 and you get 204.7

Answer 2

Answer:  Peggy worked about 200 hours.

Step-by-step explanation:

You know that the amount of money Peggy earns in 1 hour is:

$\ 45\ per\ hour$

According to the exercise, the amount of money she has saved is:

$\ 9,215$

Therefore, knowing this, you need to divide the amount of money she saved by the amount of money she earns in 1 hour, in order to estimate the number of hour Peggy worked.

Observe that $\ 9,215$  is not  is not easily divisible by  $\ 45$, therefore, you can round them up to make the estimation asked:

$\ 9,215\approx\ 10,000$  

$\ 45\approx\ 50$  

Then:

$\frac{\ 10,000}{\ 50}=200$

Peggy worked about 200 hours.