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Posted by on Friday, April 15, 2011 at 7:00pm.

a concrete area measures 20ft on each side. the concrete slab will be 8 inches deep. how many cubic feet of concrete will be needed?
my set up is 20 x 20 + 32 ????

  • MAth - , Friday, April 15, 2011 at 7:05pm

    cubic feet= LWH=20*20*8/12=?

  • MAth - , Friday, April 15, 2011 at 8:10pm

    By the way, did you figure out that age problem?
    if x = 10
    then 6+3x = 36

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