Question

Suzie learned to play a total of 16 pieces over the course of 8 weeks of piano lessons. In all, how many weeks of piano lessons will Suzie need before she will be able to play a total of 20 pieces? Solve using unit rates

Answer 1

Answer: 10 weeks

Explanation:

1) Find out how many she can learn to play in one week. 16 divided by 8 is 2

2) If she can learn to play 2 in 1 week and need to learn 20 in x weeks that is a unit rate if 1/2 and x/20.

3) 20 divided by 2 is 10 so it takes her 10 weeks to learn 20 pieces.