SOLUTION: How many pounds of hamburger that costs $1.60 per pound must be mixed with 70 pounds of hamburger that costs $2.10 per pound to make a mixture that costs $1.70 per pound.
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Question 173304: How many pounds of hamburger that costs $1.60 per pound must be mixed with 70 pounds of hamburger that costs $2.10 per pound to make a mixture that costs $1.70 per pound.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
1.60x+2.10*70=1.70(70+x)
1.60x+147=115+1.70x
1.60x-1.70x=115-147
-.10x=-28
x=-28/-.10
x=280 lbs. of $1.60 hamburger is used.
Proof:
1.60*280+2.10*70=1.70(70+280)
448+147=1.70*350
595=595
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