Question

Susie can run 2.5 miles per hour faster than Jeff. In the time that it takes Susie to run 6 miles, Jeff runs 4 miles. Find the speed of each runner.

Answer 1

so if Susie can run 2.5 miles per hour more,
so
susie Jeff
+2.5 per hour 0.0
susie runs 6 miles jeff runs 4 miles

8.5 miles per hour 4 miles per hour