Question 114323: A certain brand of razor blades c omes in packages of 6, 12, and 24 blades, costing $2, $3, $4 per packages. a store sold 12 packages containing a total of 162 blades razor blades and took in $35. How many packages of each types of each types were sold?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A certain brand of razor blades c omes in packages of 6, 12, and 24 blades, costing $2, $3, $4 per packages. a store sold 12 packages containing a total of 162 blades razor blades and took in $35. How many packages of each types of each types were sold?
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Let "x" be # of 6, "y" the # of 12, and "z" be # of 24 blade packages.
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x+y+z = 12 packages
6x+12y+24z = 162 blades
2x+3y+4z = 35
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Using the TI-83 Matrix function I find:
x = 5
y = 3
z = 4
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Cheers,
Stan H.
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