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September 20, 2014

September 20, 2014

Posted by **Bob** on Tuesday, November 2, 2010 at 10:24am.

- Algebra -
**Gray**, Tuesday, November 2, 2010 at 10:34amThe decaf coffee contains 3 units of caffeine per cup (100 minus 97). The regular coffee contains 100 units of caffeine per cup. Two cups of regular coffee contains 200 units, so you would have to drink 200/3 = 66.666 cups of decaf. 66.666*8 = 533.333 ounces

- Algebra -
**matt**, Monday, December 12, 2011 at 8:14pm-3x + 2y =2

- Algebra -
**matt**, Monday, December 12, 2011 at 8:42pm-3x + 2y = 2

- Algebra -
**Anonymous**, Friday, January 6, 2012 at 11:00amx-4y=8

- Algebra -
**Anonymous**, Wednesday, December 19, 2012 at 11:14amJenny received a gift card for a coffee store. She used it in buying some coffee that cost per pound. After buying the coffee, she had left on her card. How many pounds of coffee did she buy?

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