#.. Erika and Andy are planning to meet at a location 5 miles from their house. Erika is running and Andy is riding his bike. Andy rides his bike at a speed that is 10 miles per hour faster than Erika runs. If it takes Erika 40 minutes (2/3 of an hour) longer to reach the location, set up and solve an equation to find Erika's speed.

no idea how to setup, or solve. please show work to help me understand. thanks much.