Proportions

Master rate, time, and distance with proportion word problems!

How many minutes does it take Devon to travel 10 miles at 40 miles per hour? 10 minutes 15 minutes 20 minutes 40 minutes Kelly rode her bicycle for 35 minutes at a speed of 12 miles per hour. At that speed, how many miles did she ride? 5 miles 6 miles 7 miles 8 miles A jet plane flies at 450 miles per hour. How many miles does it travel in 18 minutes? 130 miles 135 miles 140 miles 150 miles John and Geoff drive 20 miles from Kelowna to Big White to go skiing. The speed limit is 55 miles per hour (mph). It snowed all night, and the safe speed to drive is 40 miles per hour (mph). Explain how you can determine how many more miles it takes to drive 20 miles at 40 miles per hour (mph) than at 55 miles per hour (mph). Explain your thinking.