Question 354035
peanuts worth $2.50 per pound  x lbs
cashews worth $4.75 per pound  12 lbs. 
Mixture worth $4 per pound, (x+12) lbs
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2.5x+4.75*12=4(x+12)
2.5x+57=4x+48
4x-2.5x=57-48
1.5x=9
x=9/1.5
x=6 lbs of peanuts
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