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The Efficiency of an Engine An approximate equation for the efficiency E (in percent) of an engine is: E=100(11R25) where R is the compression ratio.

The Efficiency of an Engine

An approximate equation for the efficiencyE(in percent) of an engine is:

E=100(11R25)

whereRis the compression ratio. FindRifE=43.24. Round the answer to two decimal places.

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