Question

After 15 minutes a train has moved 9/2 miles toward its destination. How many miles per minute is the train moving

Answer 1

`0.30(miles)/(minute)`

Explanation:

Let

x-------> the distance in miles

t-------> the time in minutes

we know that

The speed is equal to divide the distance by the time

so

`speed=(x)/(y)`

in this problem we have

`x=(9/2)\ miles`

`t=15\ minutes`

substitute

`speed=((9/2))/(15)`

`speed=(9)/(30)=0.30(miles)/(minute)`