Question

In the Tour De France, Alex biked 198 km in 5 hours and Sam biked 298 km in 7 hours. Who biked at a faster rate? Show your work and explain your reasoning. (You may use a calculator).

Answer 1

Sam bikes at a faster rate. He can go 42.6 km in one hour while Alex is only able to go 39.6 km in the same amount of time.

Explanation:

Alex's unit rate:

198/5 = 39.6 km per hour

Sam's unit rate:

298/7 = 42.6 km per hour rounded to the nearest tenths'

Answer 2

Explanation:

21