David Hikes 2 1/4 Miles In 1/2 An Hour. What Is His Rate Per Hour? At This Rate How Long Will It Take Him To Walk 18 Miles? If He Walks For 7 Hours, H

David hikes 2 1/4 miles in 1/2 an hour. What is his rate per hour? At this rate how long will it take him to walk 18 miles? If he walks for 7 hours, how far will he have gone?

 

Answer:

Davids rate per hour: 4\frac{1}{2}miles/hour

Time will take David to walk 18 miles: 4hours

Distance traveled by David in 7 hours: 31\frac{1}{2}miles

Step-by-step explanation:

Davids rate per hour.

2\frac{1}{4}miles/\frac{1}{2}hour=\frac{9}{4}(\frac{2}{1})=\frac{18}{4}=4\frac{2}{4}=4\frac{1}{2}miles/hour

Time will take David to walk 18 miles.

18miles/4\frac{1}{2}miles/hour=18/\frac{9}{2}=18(\frac{2}{9})=\frac{36}{9}=4hours

Distance traveled by David in 7 hours.

7hours(\frac{4\frac{1}{2}miles}{hour})=7(\frac{9}{2})=\frac{63}{2}=31\frac{1}{2}miles


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