SOLUTION: two companies working together can clear a parcel of land in 9 hours. Working alone, it would take Company A 4 hours longer to clear the land than it would Company B. How long woul

Question 900790: two companies working together can clear a parcel of land in 9 hours. Working alone, it would take Company A 4 hours longer to clear the land than it would Company B. How long would it take Company B to clear the parcel of land alone? (Round off your answer to the nearest tenth)
Found 2 solutions by Jc0110, MathTherapy:
Answer by Jc0110(165) (Show Source): You can put this solution on YOUR website!
Let a to be the time taken for Company A to clear the land, while b to be the time taken for Company B to clear the land.

... Substitute into

hours *It is already rounded off to the nearest tenth*

Therefore, Company B takes 2.5 hours to clear the parcel of land alone.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

two companies working together can clear a parcel of land in 9 hours. Working alone, it would take Company A 4 hours longer to clear the land than it would Company B. How long would it take Company B to clear the parcel of land alone? (Round off your answer to the nearest tenth)

Company B takes 16.219 ≈ hours
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