SOLUTION: A marble door will be shaped like a rectangular solid and measure 82 3/4 inches long and 40 2/3 inches wide and will be 1 1/8 inches thick.How many cubic inches of marble will be n

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Question 289159: A marble door will be shaped like a rectangular solid and measure 82 3/4 inches long and 40 2/3 inches wide and will be 1 1/8 inches thick.How many cubic inches of marble will be needed for the door?Give solution as a mixed number
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(82 3/4)(40 2/3)(1 1/8)
(82*4+3)/4*(40*3+2)/3*(1*8+1)/8
(328+3)/4*(120+2)/3*9/8
331/4*122/3*9/8
363,438/96=3785 13/16