» Jeffrey learned to sing a total of 10 pieces over the course of 5 weeks of voice lessons.
After 9 weeks of voice lessons, how many pieces will Jeffrey be able to sing, in total? Solve
using unit rates.

Respuesta :

Answer:

Jeffrey will be able to sing 18 pieces over 9 weeks

Step-by-step explanation:

5    9

10   x

5x = 90

x = 18