SOLUTION: Many students purchase pencils and notebooks from claw-mart because responsible math students bring these to class. One day the store sold a total of 178 notebooks and pencils. The

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Many students purchase pencils and notebooks from claw-mart because responsible math students bring these to class. One day the store sold a total of 178 notebooks and pencils. The      Log On


   



Question 850758: Many students purchase pencils and notebooks from claw-mart because responsible math students bring these to class. One day the store sold a total of 178 notebooks and pencils. The cost of pencils is twenty-five cents and the cost of a notebook is fifty cents. The store collected $58.75 from the sale of these items. The store lost the receipt for the day. How would you help the store determine how many of each items the store sold that day?
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
p for pencils
n for notebooks

p%2Bn=178 and 0.25p%2B0.50n=58.75.
Simplify the cost equation first.
4%2A%280.25%29p%2B4%280.50%29n=4%2858.75%29
2p%2B8p=235

System to solve:
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p+n=178
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2p+8n=235
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