Jennifer F.

asked • 12/16/15

Algebra -- Rate question

Curtis can unload a truckload of hay in 30 minutes, but it takes Ronnie 40 minutes to do the same. Working together, how many minutes will it take them to unload 35 truckloads of hay?

3 Answers By Expert Tutors

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Jennifer F.

Thank you for your help. You are the only one who got the right answer -- 600 minutes.
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12/16/15

Arthur D.

tutor
You are very welcome, Jennifer.
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12/16/15

Raphael D. answered • 12/16/15

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Jennifer F.

Thank you for your help. The answer is 600 minutes.
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12/16/15

Reginald J. answered • 12/16/15

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An Adept Algebra Advisor (1st Session Free)

Raphael D.

It is not the "number in between" - there is no linear dependence of combined time and the seperate ones; rather inverse of the total time equals to su of the inverses of individual times:   1/T=1/T1+1/T2
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12/16/15

Jennifer F.

Thank you for your help. The answer is 600 minutes.
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12/16/15

Reginald J.

You welcome, Jennifer! I'll get it right next time x)
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12/16/15

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