carol works part time at 2 stores she earns 8.25 an hour at the flower shop, and 7.50 at a diner. last week carol earned 63.75. carol worked 5 hours at the flower shop, how many hours did she work at the diner?

The first step is to figure out how much she earned at the flower shop. This is fairly simple. All we need to do here is multiply her wage and her hours.

wage * hours = money earned

8.25 * 5 = 41.25

Now if you subtract the money earned at the flower shop from the total money earned, we'll get the money earned at the diner.

63.75 - 41.25 = 22.50

Now if we switch around the first formula we had, we can create one to figure out hours since we already know the money earned. That formula would look like this:

money earned / wage = hours

If we put the numbers in, the formula is as follows:

22.50 / 7.50 = 3

This means the number of hours worked at the diner is 3.