Question

A car takes 4 hours to cover a distance, if it travels at a speed of 60 mph.

What is the equation that can used to find its speed (×) to cover the same distance
in 3 hours?

Answer 1

The equation that can be used to find its speed (x) to cover the same distance is f(x) = x + 60

Explanation:

First off, let's gather what we know. The car will take 4 hours to cover a distance if it is going 60 mph. We need the car to be a speed where it can cover the same distance within 3 hours.

THe first step to solving this problem is dividing 60 by 4 to see how much the speed of the car should increase in order to travel the same distance within 3 hours.

60/4 = x

We need to add x to the original speed of 60 mph.

Therefore, the equation that can be used to find its speed (x) to cover the same distance is f(x) = x + 60

Therefore, the equation that can be used to find its speed (x) to cover the same distance is f(x) = x + 60

Hope this helps! :)

Answer 2

Hello!

In order to solve this equation,we must first find out what distance is being traveled in 4 hours. If we travel 4 hours, at a constant speed of 60 miles,we must multiple those two numbers to find the distance travelled.

60x4 is 240.

This means we must divide 240 by 3 hours to find our constant rate of speed.

240 divided by 3 is 80.

This means, we would need to travel 80 mph to arrive to the same location in three hours.

x=80.

Hope this helps & good luck.