Question 275342: how many pounds of coffee worth $8.00 should be added to 10 pounds of coffee worth $5.00 a pound to get a mixture worth $6.00 a pound Found 2 solutions by stanbon, dabanfield:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! how many pounds of coffee worth $8.00 should be added to 10 pounds of coffee worth $5.00 a pound to get a mixture worth $6.00 a pound
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Equation:
value + value = value
8x + 5*10 = 6(x+10)
8x + 5*10 = 6x + 6*10
2x = 10
x = 5 lbs: (amt. of $8 coffee needed in the mixture)
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Cheers,
Stan H.
You can put this solution on YOUR website! how many pounds of coffee worth $8.00 should be added to 10 pounds of coffee worth $5.00 a pound to get a mixture worth $6.00 a pound
Let x be the amount of $8.00 coffee. Then when we are finished the total amount of $6.00 coffee we will have is 10 + x.
So:
10*5.00 + x*8.00 = (10+x)*6.00
50 + 8x = 60 + 6x
2x = 10
x = 5
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