Problema Solution
a truck can travel 220 miles in the same time that it takes a car to travel 260 miles. If the trucks rate is 10 miles per hour slower than the cars, find the average rate for each
Answer provided by our tutors
Let
v = the rate of the truck, v>0
v + 10 = the rate of the car
d1 = 220 mi the distance of the truck
d2 = 260 mi the distance of the car
Since speed = distance/time follows time = distance/speed
d1/v = d2/(v + 10)
220/v = 260/(v + 10)
........
........
v = 55 mph
v + 10 = 55 + 10 = 65 mph
The average rate of the truck is 55 mph.
The average rate of the car is 65 mph.