Question

you run 3 miles up a hill and 3 miles down a hill. You run 25% faster going down the hill than going up the hill. let r be your speed( in miles per hour) while running up the hill. Write an expression that represents the amount of time you spend running on the hill. Please help ME!!!!

Answer 1

t=(3/r) + (3/1.25r)

You add .25 when going down the hill to r.