Posted by **natalie** on Tuesday, May 3, 2011 at 6:51pm.

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?

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**Ms. Sue**, Tuesday, May 3, 2011 at 6:53pm
20/2.80 = 35/x

Cross multiply and solve for x.

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**PsyDAG**, Tuesday, May 3, 2011 at 6:56pm
$2.80/20 = x/35

Divide $2.80 by 20 and multiply by 35.

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**natalie**, Tuesday, May 3, 2011 at 6:58pm
20/2.80=35/x

20x=35*2.80

20x=98

divided by 20 on both sides

x=4.90?

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**Ms. Sue**, Tuesday, May 3, 2011 at 6:59pm
Right.

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**natalie**, Tuesday, May 3, 2011 at 7:03pm
thank you.

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**Ms. Sue**, Tuesday, May 3, 2011 at 7:03pm
You're welcome.

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