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DO the following: A. solve the equation B. answer the question Deni can clean the pool four times as fast as her sister lamur. Together they can do the job in 3 hours. How long would it take each of them working alone?
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D = Deni L = Lamur h = hours Dh = 4Lh D + L = 3h
Cool I got that :)
So substitute... 4Lh + L = 3h so that L = 3/5
Now solve for D by substituting 3/5 in D = 4L
D = 3/5(4)
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d= 2.4
Then switch the D and L for the answer.
so do 4(3/5) ?
So L = 2.4h and D = 3/5h
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