Homework Help: to ms.sue

Posted by Celest on Tuesday, April 17, 2012 at 5:29pm.

thank you so much! i still dont get it when my teacher said you had to multiply it first. then subtract it and add something.thank you though.

to ms.sue - Ms. Sue, Tuesday, April 17, 2012 at 5:30pm
Was it a problem like this?

How much did Celest pay for a shirt that was originally $20 but was marked 10% off?

100 - 10 = 90

0.9 * 20 = 18
to ms.sue - Ms. Sue, Tuesday, April 17, 2012 at 5:39pm
Another way to do that problem?

0.1 * 20 = $2.00

20 - 2 = 18

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