Question 102198
How many tons of hay at $125 per ton and $75 per ton must be purchased to have 100 tons of hay worth $9000?
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Let # of tons of $125 hay be "x" ; value of that is 125x dollars.
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# of tons of $75 hay is "100-x" ; value of that is 75(100-x)=7500-75x dollars
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EQUATION:
value + value = 9000 dollars
125x + 7500-75x = 9000
50x = 1500
x = 30 (# of tons of $125 per ton hay that must be purchased)
100-x = 70 (# of tons of $75 per ton hay that must be purchased)
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Cheers,
Stan H.