Question

*THIS IS AN ANSWER BECAUSE I CAN'T ANSWER SOMEONE'S QUESTION*

Bob can do a job in 5 hours, while Bill can do the same job in 8 hours. How many hours would it take them, working together, to do this job?

ANSWER:

The one in the following equation stands for ONE WHOLE JOB.


`(1)/(5)x+(1)/(8)x=1\\\\`


`x=(40)/(13) hours`

hence, this is the answer.

Answer 1

x=40/13

Explanation:

tex]\frac{1}{5}x+\frac{1}{8}x=1\\\\[/tex]

`x=(40)/(13) hours`