Question

Gabe rents a piano for $49 per month. He earns $15 per hour giving piano lessons to students. How many hours of lessons per month must he give to earn a profit of $326?

Answer 1

49 + 15 + 326 should be your answer....

Answer 2

18 hours.

Explanation:

Gebe rents a piano for $49 per month.

He earns $15 per hour for giving piano lessons to students.

Let his earning for x hour = 15x

15x + 49 = 316

15x = 316 - 49

15x = 267

x =
`(267)/(15)`

x = 17.8 hours ≈ 18 hours

Gebe must give 18 hours lessons to earn a profit of $326.