SOLUTION: You just spent $60 on party decorations. The streamers cost $2 per package and paper balls cost $2.50. If you purchased 25 decorations, how many streamers and how many paper balls

Question 937215: You just spent $60 on party decorations. The streamers cost $2 per package and paper balls cost $2.50. If you purchased 25 decorations, how many streamers and how many paper balls did you purchase?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You just spent $60 on party decorations. The streamers cost $2 per package and paper balls cost $2.50. If you purchased 25 decorations, how many streamers and how many paper balls did you purchase?
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Equation:
Quantity:: s + p = 25 decorations
Value:::: 2s+2.5p = 60
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Modify for eliminations::
s + p = 25
s + 1.25p = 30
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Subtract and solve for "p"::
0.25p = 5
p = 20 (# of paper balls purchased)
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s = 25-20 = 5 (# of streamers purchased)
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Cheers,
Stan H.
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