The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 80 feet is 240 pounds per square inch. What is the pressure at 10 feet?

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ISBN:9780470458365
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The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 80 feet is 240 pounds per square inch. What is the pressure at 10 feet? 
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