Question 263242
Trail Snax. Corp. mixes candy that costs $5.00 per kg with peanuts that cost $3.80 a kg. 
How many kilograms of raisins should be mixed with 10 kg of peanuts to obtain a mixture worth $4.00 per kg?
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The per kg price of raisins is $5
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Equations:
peanut value + raisin value = mixture value
3.8*10 + 5*x = 4(x+10)
38 + 5x = 4x + 40
x = 2 kg (amount of raisins needed in the mixture)
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Cheers,
Stan H.