SOLUTION: Corey is walking in a 3-mile walkathon on Saturday.In his last walkathon he walked 5 miles in 1.5 hours. based on this rate,how much time will it take corey to walk 3 miles?you

Question 156430: Corey is walking in a 3-mile walkathon on Saturday.In his last walkathon he walked 5 miles in 1.5 hours.
based on this rate,how much time will it take corey to walk 3 miles?you must use a proportion and your answer on the lines below.
SHOW ALL WORK

proportion_________________
answer_____________ hour(s)
Found 2 solutions by kdr, gonzo:
Answer by kdr(11) (Show Source): You can put this solution on YOUR website!
Corey walked 5 miles in 1.5 hours, which could be expressed as the ration 1.5 hours:5 miles. The details for the new walkathon of 3 miles will be, in the same pattern, x hours: 3 miles.
The proportion to solve is:
To solve for x, multiply both sides by 3:

Simplifying, we have:

.9 = x
So, Corey will take .9 hours to walk 3 miles.
Let's put the result into our original proportion to make sure it's correct:

Answer by gonzo(654) (Show Source): You can put this solution on YOUR website!
proportion is (3 / 5) * 1.5 hours = .9 hours.
answer is .9 hours.
alternatively, hours per mile from last run = 1.5 hours / 5 miles = .3
3 miles at .3 hours per mile = 3 * .3 = .9 hours.

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