Question

A car travels 70 miles in 80 minutes. Which is its average speed per minute?

a. 11 miles
b. 8.75 miles
c. 1.14 miles
d. 0.875 miles User: gopd

Answer 1

70/80 = miles per minute.
70/80 = 0.857 miles per minute

Answer: d. 0.875 miles

Answer 2

The average speed per minute of the car is :

d. 0.875
`(mi)/(min)`

Explanation:

The average speed tells you the speed of an object over time, it can be expressed as:

`A_(s)=(Distance)/(Time)`

As the car travels 70 miles in 80 minutes, we can replace values in the equation:

Distance = 70 miles

Time = 80 minutes

`A_(s)=(Distance)/(Time)`

`A_(s)=(70miles)/(80minutes)`

`A_(s)=0.875(mi)/(min)`