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David hikes 2 ¼ miles in ½ an hour.
a. What is his rate in miles per hour?
b. At this rate, how long will it take him to walk 18 miles?
c. If he walks for 7 hours, how far will he have gone?

Respuesta :

Answer:

a. 4.5 miles per hour

b. 4 hours

c. 31.5 miles

Step-by-step explanation:

1. Easy since its half an hour multiply by 2

4 2/4=4 1/2 or 4.5

2. 18 miles would take

18 divided by 4.5 is equal to

4 hours

3. & hours just multiply 4.5 by 7

31.5 miles