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January 29, 2015

January 29, 2015

Posted by **Jessi** on Wednesday, February 25, 2009 at 6:22pm.

A 20-ounce bag of popcorn costs $2,80. If the unit price stays the same, how much does a 35-ounce bag of popcorn cost?

- Math -
**Ms. Sue**, Wednesday, February 25, 2009 at 6:28pmOne way to solve this is by setting up a proportion and cross multiplying.

20 / 2.8 = 35 / x

Or you could figure the cost per ounce.

20 / 2.8 = ??

Multiply your answer by 35.

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