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September 30, 2014

September 30, 2014

Posted by **Sammy** on Sunday, February 27, 2011 at 7:20pm.

A 64 oz. bottle of juice costs $2.39, and a 20 oz. bottle costs &0.79. You can use a 20-cents-off-coupon if you buy four 20 oz. bottles or a 15-cents-off-coupon if you buy a 64 oz. bottle. Which is the better buy?

- Math -
**Ms. Sue**, Sunday, February 27, 2011 at 7:29pm2.39-0.15 = 2.24

2.24/64 = 0.035 per oz.

4 * 20 = 80 oz.

4 * .79 = 3.16

3.16 - 0.2 = 2.96

2.96/80 = 0.037 per oz.

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