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Ben starts walking along a path at 2 mi/h. One and a half hours after Ben leaves, his sister Amanda begins jogging along the same path at 7 mi/h. How long (in hours) will it be before Amanda catches up to Ben?



Enter the exact answer.

Hint: The distance formula is that distance = rate * time, so for example in one and a half hours, Ben has walked 2 * 1.5 miles.



Amanda catches up to Ben in
Number
hours.

Sagot :

toyeebat30

Answer:

25.7minutes

Step-by-step explanation:

D =r×t=2×1.5=3miles

A D=7÷2=3.5

7=1h. 3.5=30minutes.

3.5=30

0.5=x

3.5x÷3.5=15÷3.5

X=4.3

(3.5-0.5)=(30-4.3)

Hence it takes Amanda 25.7minutes to catch up with Ben.

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