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?
63.75 - (5 * 8.25) = 22.50
22.50 / 7.5 = 3 hours
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To find out how many hours Carol worked at the diner, we need to determine the total amount she earned at the flower shop and subtract it from her overall earnings.
Step 1: Calculate Carol's earnings at the flower shop.
Carol earns $8.25 per hour at the flower shop and worked 5 hours.
Earnings at the flower shop = $8.25/hour x 5 hours = $41.25
Step 2: Subtract the earnings at the flower shop from Carol's total earnings to calculate her earnings at the diner.
Total earnings - Earnings at the flower shop = Earnings at the diner
Carol earned $63.75 in total, and her earnings at the flower shop were $41.25.
Earnings at the diner = $63.75 - $41.25 = $22.50
Step 3: Calculate the number of hours Carol worked at the diner based on her earnings there.
Carol earns $7.50 per hour at the diner, and her earnings there were $22.50.
Number of hours worked at the diner = Earnings at the diner / Hourly wage at the diner = $22.50 / $7.50 = 3 hours
Therefore, Carol worked 3 hours at the diner.