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?

math  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?

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

math  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.

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

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

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

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