SOLUTION: If barbara were to paint her living room alone, it would take 4 hours . Her sister sarah could do the job in 5 hours . How long would it take them working together ? If needed Redu
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Question 1134199: If barbara were to paint her living room alone, it would take 4 hours . Her sister sarah could do the job in 5 hours . How long would it take them working together ? If needed Reduce to lowest terms
Found 3 solutions by MathLover1, MathTherapy, greenestamps:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
...... cross multiply
hours or working together
Answer by MathTherapy(10549) (Show Source): You can put this solution on YOUR website!
If barbara were to paint her living room alone, it would take 4 hours . Her sister sarah could do the job in 5 hours . How long would it take them working together ? If needed Reduce to lowest terms
Correct answer:
Answer by greenestamps(13198) (Show Source): You can put this solution on YOUR website!
The method shown by tutor @MathLover1 is correct; but she used the wrong numbers.
Using the right numbers with her method gives the correct answer as shown by tutor @MathTherapy.
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