Question

Before beginning voice lessons, Colin already knew how to sing 2 pieces, and he expects to

learn 2 new pieces during each week of lessons. How many weeks of lessons will Colin need
before he will be able to sing a total of 50 pieces?

Answer 1

Answer: Answer is 24 though

Answer 2

24 weeks of lessons

Explanation:

use y = mx + b

y = total pieces Colin can sing = 50

m = pieces learned each week of lessons = 2

x = number of weeks = ?

b = pieces colin knew before lessons = 2

50 = 2x + 2 (subtract 2 from both sides)

48 = 2x (divide both sides by 2)

x = 24 weeks