Question 1142163
A grocer wishes to mix some nuts worth $.90 per pound with some nuts worth $1.60 per pound to make 175 pounds of a mixture that is worth $1.3o per pound. How much of each should she use?
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n = $0.90 nuts
s = $1.60 nuts
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n + s = 175 ---- total weight
90n + 160s = 175*130  ----   total cost