Question 972705
A grocer wishes to mix peanuts worth .90 per pound with walnuts worth $1.60 per pound to make 175 pounds of a mixture that is worth $1.30 per pound. How much of each nut should she use?
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let x=amt of peanuts to mix
175-x=amt of walnuts to mix
..
.90x+1.60(175-x)=1.30*175
.90x+280-1.6x=227.50
0.70x=52.50
x=75
175-x=100
amt of peanuts to mix=75 lbs
amt of walnuts to mix=100 lbs