SOLUTION: Working together Erica and Shawna can answer a days worth of customer-service emails in 4 hours. Working alone, Erica takes 6 hours longer than Shawna. How long would it take Shawn

Question 1006915: Working together Erica and Shawna can answer a days worth of customer-service emails in 4 hours. Working alone, Erica takes 6 hours longer than Shawna. How long would it take Shawna to answer the emails alone?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Shawna's rate. Numerator of 1 is for ONE day's work. x is how much time.

Erica's rate is .

First part of description means .
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Fraction Skills! Multiply left side and right side by .
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