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Mr. v drives 2 hours at an average speed of 35 mph then he drives 3 hours at a speed of 48 mph. What is her average speed for the hole trip?

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\(\sf{Average~ speed =\frac{ total ~distance}{ total ~time}}\)

\(\sf{Average~ speed =\frac{ (35\times 2) + (48\times 3)}{ 2 + 3} =\frac{70+144}{5} =\frac{214}{5}=\boxed{42.8}}\)

The average speed is 42.8 mph.

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