Question

Two cars are traveling on the interstate. The blue car is traveling at 65 miles per hour.

The red car is traveling at 45 miles per hour AND is 50 miles ahead of the blue car.
How long will it take for the blue car to catch up with the red car?
y = 65x
y = 45x + 50

Answer 1

2 1/2 hours

Explanation:

use substitution method:

65x = 45x + 50

20x = 50

x = 5/2