Question

two friends are 60 miles apart. they decide to ride their bicycles to meet each other. sally starts from the college and heads east, riding at a rate of 21 mph. at the same time teresa starts from the river and heads west, riding at a speed of 15 mph. how long does it take for them to meet?

Answer 1

1 hour and 40 minutes because they are going to both make a distance of 36 miles in 1 hour combined and 60/36 is 1.666 repeating which would be 1 hour and 40 minutes