show work for"Rosa earns $12 for ever hour she babysits. She earned $780 total this summer how many hours did she work?

Answer 1

Let's use the formula:

Total earnings = Hourly rate × Number of hours worked

We are given that Rosa earns $12 for every hour she babysits, and she earned a total of $780 this summer.

Let's assume that she worked "x" number of hours.

Therefore, the equation will be:

$12 × x = $780

Dividing both sides by $12, we have:

x = $780 / $12

x = 65

Therefore, Rosa worked 65 hours this summer.