SOLUTION: Ali bought 12 pencils and 10 rules for $2.10, paying the same price for each as Ali, I bought 20 pencils and 4 rulers for $1.60, what were the prices of a pencil and a ruler?
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-> SOLUTION: Ali bought 12 pencils and 10 rules for $2.10, paying the same price for each as Ali, I bought 20 pencils and 4 rulers for $1.60, what were the prices of a pencil and a ruler?
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Question 1115442: Ali bought 12 pencils and 10 rules for $2.10, paying the same price for each as Ali, I bought 20 pencils and 4 rulers for $1.60, what were the prices of a pencil and a ruler? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Ali bought 12 pencils and 10 rules for $2.10, paying the same price for each as Ali, I bought 20 pencils and 4 rulers for $1.60, what were the prices of a pencil and a ruler?
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12p + 10r = 210
20p + 4r = 160
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