Problema Solution
A truck can travel 320 miles in the same time that it takes a car to travel 520 miles. If the truck rate is 25miles per hour slower than the car's find the average rate for each.
The rate of the car is _____miles per hour.
The rate of the truck is ____miles per hour.
Answer provided by our tutors
320 / x = 520 / y ; x/320 = y/520; y = 520/320 * x
x = y - 25
x = 520/320 * x - 25
-0.625x = -25
x = 40 mph (truck)
y = 40 + 25 = 65 mph (car)