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January 26, 2015

January 26, 2015

Posted by **natalie** on Thursday, November 12, 2009 at 12:59pm.

- 10th grade algebra -
**Ms. Sue**, Thursday, November 12, 2009 at 1:03pmTenth grade algebra? And you don't know how to figure the tip??? Something is wrong with this picture.

Using a calculator, multiply:

14.98 * 0.15 = 2.247 = $2.25

I usually do approximate figuring in my head.

10% of 15 = 1.5

Double 1.50 = 3.00

Halfway between 1.50 and 3.00 is 2.25.

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