Posted by **Brian** on Thursday, April 16, 2009 at 7:17pm.

jose can complete the job in a hours, and Maria can complete the job in b hours. How long does it take them to complete the job when they work together? I need a formula

## Answer this Question

## Related Questions

- math - Alex takes 3 hours longer to complete a certain job than Barry does. If ...
- math - if you do a job in 4 hours, and your friend can do the same job but in 6 ...
- College Algebra - It takes Todd 3 hours longer than Tom to paint a 4x5 feet ...
- algebra - Sammy can complete a programming job in 8 hours if he works alone. ...
- college algebra - sammy can complete programming job in 8 hours alone. marilyn ...
- MATH - An application of a rational function is T = (AB)/(A+B), which gives the...
- Algebra - Thomas can do a job in 4 hours. Julia can do the same job in7 hours. ...
- Algebra II - Thomas can do a job in 4 hours. Julia can do the same job in 6 ...
- math - A father can do a job in a certain number of hours. His son takes twice ...
- maths, proportion - twelve men take 6 hours to finish a piece of work. after the...