Posted by **lina** on Wednesday, February 20, 2013 at 7:09pm.

oliver can jog about 3 times as fast as he can walk. If his average walking rate is one mile in 20 minutes, about how far could he jog in 2 hours?

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**JJ**, Wednesday, February 20, 2013 at 7:13pm
walking rate = 1/20

jogging rate = 3times or 3miles/20 minutes

2 hours = 120 minutes

Can you finish from here?

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**lina**, Wednesday, February 20, 2013 at 7:17pm
I'm not getting it yet?

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**JJ**, Wednesday, February 20, 2013 at 7:24pm
you can cover 3 miles every 20 minutes

You are walking for 12o minutes.

3 miles/20 minutes = x miles/120 minutes.

The denominator of 120 is 6 times bigger than the denominator of 20.

so you should go 6 times farther.

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**lina**, Wednesday, February 20, 2013 at 7:28pm
so she could go 40 miles in 2 hours because 120/3=40

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**lina**, Wednesday, February 20, 2013 at 7:28pm
he**

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**lina**, Wednesday, February 20, 2013 at 7:35pm
No wait is it 18 miles?

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**JJ**, Wednesday, February 20, 2013 at 8:17pm
18 miles is right.

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