Question 732439
A blend of coffee was made by using coffee worth $4.25 a pound and coffee worth $3.49 a pound. The blend contained seven pound less than three times as much of the $3.49 coffee than of the $4.25 coffee. How much of each kind was used if the total value of the blend was $196.37?
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let x=lbs of $3.49 coffee used
3x-7=lbs of $4.25 coffee used
..
3.49x+4.25(3x-7)=196.37
3.49x+12.75x-29.75=196.37
16.24x=226.12
x≈13.92
3x-7≈34.77
..
lbs of $3.49 coffee used≈13.92
lbs of $4.25 coffee used≈34.77