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January 31, 2015

January 31, 2015

Posted by **stacy** on Wednesday, February 16, 2011 at 4:21pm.

1) If your reward is $10, what do you know about the amount of your purchase?

2) Give three possible amounts if your reward is $20.

3) What should you do if your total purchase is $98? Explian answer.

- math -
**Henry**, Friday, February 18, 2011 at 3:03pmYou get: $10 / $50 = 1/5 = 0.20 = 20%

of the amount spent.

1. 10 = 0.2S,

S = 10 / 0.2 = $50 Spent.

2. 20 = 0.2A,

A = 20 / 0.2 = $100.

I can give only one amount.

3. Reward = 0.2 * $98 = 19.60.

5

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