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

 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:

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:

Peggy worked about 200 hours.

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step-by-step explanation:

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