SOLUTION: A contractor finds that Crew A takes 5(1/2) hours to construct a retaining wall and Crew B can do the same job in 7(1/2) hours. If Crew A and Crew B work together, how long will
Algebra.Com
Question 1174522: A contractor finds that Crew A takes 5(1/2) hours to construct a retaining wall and Crew B can do the same job in 7(1/2) hours. If Crew A and Crew B work together, how long will it take them to construct the retaining wall?
a) Let h = the time to complete the job. Write the equation you would use to solve this problem.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A contractor finds that Crew A takes 5(1/2) hours to construct a retaining wall and Crew B can do the same job in 7(1/2) hours.
If Crew A and Crew B work together, how long will it take them to construct the retaining wall?
a) Let h = the time to complete the job. Write the equation you would use to solve this problem.
:
let the completed job = 1, each will do a fraction of the job which adds up to 1
+ = 1
RELATED QUESTIONS
A contractor finds that Crew A takes
5(1/2) hours to construct a retaining wall and... (answered by ankor@dixie-net.com)
A 3-men crew can do a certain job in 4 hours, while it takes a 4-men crew to do the same... (answered by ankor@dixie-net.com)
in checking records finds that crew A can pave a contract length of highway in 8 hours.... (answered by scott8148)
A 3-men crew can do a certain job in 3 weeks and 2 days, if we are to hire 4 men crew... (answered by josmiceli)
It takes crew A 4 hours to paint a room. It takes crew B 5 hours to do the same job. How... (answered by josmiceli,Edwin McCravy)
One road crew can pave a section of highway in 15 h. A second crew can do the same job in (answered by josgarithmetic,ikleyn,Alan3354,greenestamps)
Crew A can assemble 2 cars in 5 days, and crew B can assemble 3 cars in 7 days. If both... (answered by josgarithmetic)
A mason can construct a retaining wall in 10 h. The mason's experienced apprentice can do (answered by jorel555)
If it takes a janitorial crew 6 h to clean a company’s offices, then in x hours the... (answered by josgarithmetic,greenestamps)