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OpenStudy (anonymous):
A concrete foundation for a building has the shape of a rectangular prism. The foundation is 15yards long, 10 yards wide, and 3 yards high. If concrete costs $3 per cubic yard, how much did the concrete cost for the foundation?
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OpenStudy (mathstudent55):
You need to find the volume of the prism in cubic yards. Then multiply the volume by the unit cost of concrete.
OpenStudy (mathstudent55):
Do you know the formula for the volume of a prism?
OpenStudy (mathstudent55):
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