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Mathematics 14 Online
OpenStudy (anonymous):

david can unload a delivery truck in 20 minutes. joe can unload the truck in 35 minutes. how long will the unloading take if they work together?

OpenStudy (anonymous):

david does 1/20 of work in one minutes joe does 1/35 of work in one minutes

OpenStudy (anonymous):

~1=~1

OpenStudy (anonymous):

(1/20 +1/35)x=1

OpenStudy (anonymous):

find x

OpenStudy (anonymous):

I got something close to 12 minutes

OpenStudy (anonymous):

thank you!

OpenStudy (anonymous):

12.7273 to be more accurate

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