Question 907728
Elizabeth Suco and her friend Harold Tanner are riding their bicycles in a fundraiser for charity. Harold leaves the starting point at 7:00 AM and rides at 15 miles per hour. Elizabeth leaves the starting point at 7:30 AM and rides at 18 miles per hour.How long after Elizabeth leaves the starting point will she catch up? How far from the starting point will they be?
***
let x=Elizabeth's travel time
x+.5=Harolds's travel time
speed*travel time=distance (equal for both)
..
15(x+.5)=18x
15x+7.5=18x
3x=7.5
x=2.5
18x=45
How long after Elizabeth leaves the starting point will she catch up? 2.5 hrs
How far from the starting point will they be? 45 miles