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OpenStudy (anonymous):
Jill walks 3 miles and her older sister walks 10 miles at a rate 2 mph faster than Jill. If the time for each girl's walk is added, the total is 3 hours, how fast does Jill’s sister walk (in miles per hour)? Use the following equation: 3/J + 10/J + 2 = 3 hours
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OpenStudy (anonymous):
solve for j. its a simple rational equation
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