Question

2. During summer vacation, you charge people $8 per hour for swimming lessons and
a $20 registration fee. If you make $52 one day, how many hours did you spend
teaching lessons?

Answer 1

the equation for this would be

Total Cost = 8h + 20

52 = 8h + 20

52 -52 = 8h + 20 - 52

-8h = -32

-8/-8 h = -32/-8

h = 4

You spent 4 hours teaching lessons to earn $52 in one day