A car and bus set out at the same time The average speed of

A car and bus set out at the same time. The average speed of the car is 30mph slower than twice the spped of the bus. In two hours, the car is 20 miles ahead of the bus. What is the rate of the car?

Solution

Car\'s rate = 2x - 30
Car\'s time = 2
bus\'s rate = x
bus\' time = 2
Your equation:
2(2x - 30) = 2x
Can you solve for x now?