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jmc

geometry intermediate

Problem

A recipe for crispy rice treats results in a mixture that fills a 9-inch by 13-inch pan to a depth of one inch. If a crispy rice treats mixture resulting from 1.5 times the original recipe is poured into a pan that is 10 inches by 15 inches, to what depth, in inches, will the pan be filled? Express your answer as a decimal to the nearest hundredth.
Solution
The volume of crispy rice treats resulting from the original recipe is cubic inches. Thus the volume obtained by making 1.5 times the original recipe is cubic inches. So the depth to which the pan is filled is inches.
Final answer
1.17