It’s math, and pls explain.
It took Tess 6 hours to drive from home to the beach at a speed of 80 km/h. If she has 5 hours to make the return trip home, what should her speed be?
b. What should her speed be if she takes 5 hours to get home? (Show your work.)
6 hr x 80 km/hr = 480 km
480 km/ 5hr = 96 km/hr
Using the hint: 6 hr * 80 km/hr = 5 hr * x km/hr