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Vaselesa [24]
3 years ago
15

Mrs. v drives 2 hours at an average speed of 35 mph. Then she drives 3 hours at a speed of 48 mph. What is her average sped for

the hole trip? Show how you got your answer. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
English
1 answer:
Rashid [163]3 years ago
4 0
\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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