Find the length or time each person drove

Question

George and Tina drove from their house to Palm Springs for a vacation. During the first part of the trip, George drove at a speed of 70 miles per hour. They switched drivers, Tina drove the rest of the way at a speed of 85 miles per hour. It took them 6 hours to reach Palm Springs, which was 480 miles away. Find the length of the time George drove as well as the length of time Tina drove

Answer 1

Tina drove t hours covering distance 85 t.

George drove (6-t) hours covering distance 70(6-t).

These distances add up to 480 miles.

 

480 = 85t + 70(6-t).  You should be able to solve for t and then answer the question about driving time for each.