# Math

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How do you solve this:

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 -

One 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 = ??
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