SOLUTION: Ron buys pens from a store. 3 packs of blue pens cost $22.50 and 4 packs of black pens cost $34.00. How much would it cost Ron to buy 2 packs of blue pens and 3 packs of black p

Question 999122: Ron buys pens from a store. 3 packs of blue pens cost $22.50 and 4 packs of black pens cost $34.00.
How much would it cost Ron to buy 2 packs of blue pens and 3 packs of black pens?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ron buys pens from a store.
3 packs of blue pens cost $22.50 and 4 packs of black pens cost $34.00.
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Each blue pack costs 22.5/3 = 7.50
Each black pack costs 34/4 = 8.50
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How much would it cost Ron to buy 2 packs of blue pens and 3 packs of black pens?
Ans: 2blue + 3black = 2(7.50)+3(8.50) = 15+25.50 = $40.50
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Cheers,
Stan H.
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