A car travels 2 1/3 miles in 3 1/2 minute. How far will it travel in 41 minutes? In 1 hour?

Answer 1

the ratios are equal

2 1/3: 3 1/2 and x/41

7/3:7/2 = x/41

7/3 times 2/7 = x/41

2/3 = x/41

x = 82/3 = 27 1/3 miles

41 is about 12 times 3 1/2 so you go about 12 times as far as 2 1/3 or about 28 miles

for one hour = 60 minutes, then

2/3 = x/60

multiply by 3 to get

2 = x/20

x = 40 miles in one hour

40/60 = 2/3, the same ratio as before