Posted by **p** on Saturday, September 19, 2009 at 4:39pm.

1. kristi jogged for 3/5 of an hr,swam 1/2 of an hr, rode her bike 3/4 of an hr how long did she exercise?=1 7/20

2.the intersest rate on an equity line of credit was 7 7/8% last month this month the interset rate is 10 3/2% how many percentage points has the interset rate inmcreased? 3 5/8

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**DrBob222**, Saturday, September 19, 2009 at 4:49pm
The first one is correct. 1 17/20. If you want to put it into minutes, that is 111 minutes or 1 hour 51 min. Check my arithmetic.

The second one, I think you meant something other than 10 3/2%.

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**p**, Saturday, September 19, 2009 at 4:55pm
thanks unfortunatley that's what it is 10 3/2%

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**DrBob222**, Saturday, September 19, 2009 at 5:01pm
In that case, 3 5/8 percentage points is correct.

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