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Sunday, February 1, 2009

Work Problem 2

In this Algebra work word problem we have pump A that can fill the pool in 10 hours and we have pump B that can fill the pool in 8 hours. If both pumps A and B were used at the same time how long could would it take to fill the same pool?



Work Problem 2 Solution
** don't cheat try it yourself 1st

3 comments:

  1. pump A that can fill the pool in 10 hours
    pump B that can fill the pool in 8 hours
    a+b=10
    a-b=8 cancel b
    2a/2=18/2 divide cancel 2a/2
    a=9
    a+b=10
    9+b=10 transfer 9 to other side it bcomes negative
    b=10-9
    b=1
    check:
    a+b=10
    9+1=10
    a-b=8
    9-1=8

    ReplyDelete


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