Answer: Peggy worked about 200 hours.
Step-by-step explanation:
You know that the amount of money Peggy earns in 1 hour is:
According to the exercise, the amount of money she has saved is:
![\$9,215](https://tex.z-dn.net/?f=%5C%249%2C215)
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
is not is not easily divisible by
, therefore, you can round them up to make the estimation asked:
Then:
![\frac{\$10,000}{\$50}=200](https://tex.z-dn.net/?f=%5Cfrac%7B%5C%2410%2C000%7D%7B%5C%2450%7D%3D200)
Peggy worked about 200 hours.