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September 19, 2014

September 19, 2014

Posted by **micaela** on Wednesday, October 10, 2012 at 8:22pm.

1- how much did crusty make for every balloon?

2- what open sentence (equation) would we wite to solve this?

- math -
**Rashmi**, Wednesday, October 10, 2012 at 8:38pmHe buys 5 for $ 1, so he pays 20 cents for each.

He sells 3 for $ 1, so he earns 33 cents on each.

Now the cost price is given as C(x) = .20x

The revenue is given as R(x) = .33x

He makes $20 by selling the balloons.

Hence 20 = .33x

x = 20/.33

x = 60.6

x = 60 balloons

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