Question

Greta can bike 6 miles in 30 minutes. At that rate, how many miles can she bike in 45 minutes?

Answer 1

Feet up a ratio for miles over time:

6/30 = x/45

Cross multiply:

30x = 270

Divide both sides by 30:

X = 270/30

X = 9 miles

Answer 2

Answer: 9 miles

Step-by-step explanation:30 divided by 6 is 5. So the was biking 1 mile every 5 minutes. 45 divided by 5 is 9.