Question

Renee can sew a 25-square-foot quilt in 16 hours. Genera can sew the same size quilt in 12 hours. How long would it take them to sew the quilt working together?

Answer 1

B

Explanation:

x = 6 6/7 hours.

Answer 2

First let us say that if a 25-square-foot quilt is done that is counted as 1 job. So the rate of Renee is 1 job/16 hours. The rate of Genera is 1/12. To solve the time to finish one job when both are working, we represent it with an algebraic expression as follows:


`(1)/(16) + (1)/(12) = (1)/(x)`

Then x = 6 6/7 hours.