Question

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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

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


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

The average speed is 42.8 mph.