Jose walks at a rate of 4 miles per hour and runs at a rate of 8 miles per hour. Each week, his exercise program requires him to cover a total distance of
20 miles with some combination of walking and/or running.
What is the y-intercet

Jose walks at a rate of 4 miles per hour and runs at a rate of 8 miles per hour Each week his exercise program requires him to cover a total distance of 20 mile class=