SOLUTION: ok here it is it is a mixture problem. the formula is V+AC value amount cost. A clothing company buys 60 yards of cotton and 90 yards of wool fro a total cost of $1800. Another

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Question 192957: ok here it is it is a mixture problem. the formula is V+AC value amount cost.
A clothing company buys 60 yards of cotton and 90 yards of wool fro a total cost of $1800. Another purchase at the same price included 80 yards of cotton and 20 yds of wook for a total cost of $1000. Find the cost per yard of the cotton and wool?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A clothing company buys 60 yards of cotton and 90 yards of wool fro a total cost of $1800. Another purchase at the same price included 80 yards of cotton and 20 yds of wook for a total cost of $1000. Find the cost per yard of the cotton and wool?
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Value Equation: 60c + 90W = 1800 dollars
Value Equation: 80c + 20w = 1000 dollars
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6c + 9w = 180
8c + 2w = 100
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Modify:
12c + 18w = 360
72c + 18w = 900
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60w = 540
w = $9 (price for a yard of wool)
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Substitute into 6c + 9w = 180 to solve for "c":
6c + 9*9 = 180
6c = 99
c = $16.50 (price for a yard of cotton
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Cheers,
Stan H.