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Manny can complete a sales route in 7 hours. Jane can do the same job in 3hours. How long will it take them to the job together

User Tomor
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1 Answer

4 votes

Answer:

Explanation:

1/7x+1/3x=1

3/21x+7/21x=1

10/21x=1

x=21/10 hour or 2 hours and 1 minute

User Meh
by
7.9k points
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