SOLUTION: joe can paint the barn in 11 hours by himself. Steve has never timed himself painting a barn before so we don't know how fast he can complete the job. Working together, the two fin

Question 945665: joe can paint the barn in 11 hours by himself. Steve has never timed himself painting a barn before so we don't know how fast he can complete the job. Working together, the two finish the job in 7 hours. How long would it take steve to paint the barn alone?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = hours Steve takes to paint the barn alone
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rate:
r = w/t
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rates are additive:
1/11 + 1/x = 1/7
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1/x = 1/7 - 1/11
x = 1/(1/7 - 1/11)
1/(1/7 - 1/11)
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