Question

It took a truck, which is moving at 60 mph, 8 hours to get from Boston to Washington DC. How long will it take a car to get from Boston to Washington DC, if it travels at 75 mph?

Answer 1

6.4 hours

Explanation:

60*8/75=

480/75=

6.4

Answer 2

For this case we have that by definition the time is given by:

`t=(d)/(v)`

Where the variable "d" represents the distance and "v" represents the speed.

So, first we need to know the total distance:

`d=(v)(t)`

`d=(60)(8)`

`d=480 mi`

Then, the time for 75mph is given by:

`t=(480)/(75)`

`t=6,4`

Answer:

6,4 hours