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Real-Life Math

You are about to clear some rock from a site. You must figure out exactly how much tonnage will result from the broken rock.

Gary Laria is an underground development miner. "I extract waste rock by drilling and blasting in order to get to the gold ore where production miners take over," he says.

Your job is to figure out the tonnage of rocks for an area that is 9 feet high and 9 feet wide and 8 feet in length (depth). You know that each cubic foot of rock weighs approximately 1/12 of a ton. Laria says the calculation for volume is:

Volume (in cubic feet) = height x width x length

How much do you estimate the volume will weigh?

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