Homework Help: algebra

Posted by franklin on Saturday, October 30, 2010 at 8:31pm.

The volume of a rectangular slab of concrete needs to exceed 72 cu. ft. If the length is 12 feet and the width is 8 feet, how thick does the concrete slab need to be?

algebra - bobpursley, Saturday, October 30, 2010 at 8:51pm
12*8*thickness>72
algebra - franklin, Saturday, October 30, 2010 at 8:55pm
would I replace the word "thickness" with 96? 12*8*96 > 72?
algebra - Ms. Sue, Saturday, October 30, 2010 at 8:57pm
(12 * 8)t = 72
96t = 72
t = 72/96
t = 0.75 inches

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