SOLUTION: Use the 5 steps for problem solving to answer the following question The volume of a rectangular slab of concrete need to exceed 72 cu. ft. If the length is 12 ft. ad the width

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 Question 621059: Use the 5 steps for problem solving to answer the following question The volume of a rectangular slab of concrete need to exceed 72 cu. ft. If the length is 12 ft. ad the width is 8 ft. how thick does the concrete slab need to be? Does anyone have the time to help me out o this....PLEASEAnswer by KMST(1868)   (Show Source): You can put this solution on YOUR website!Those "5 steps for problem solving" are a mystery to me. I solve problems my own way, using my own reasoning and not a pre-set recipe. I believe that using recipes is the wrong way to teach math. The volume of a rectangular right prism can be calculated as Volume = length X width X height If the volume (V, in cubic feet) has to be at least 72 cubic feet, and the height (or thickness) of the slab is x feet, and can be combined to get --> --> So the concrete slab should be at least 3/4 of a foot (9 inches) thick.