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A grocer wishes to mix some nuts worth 0.90 per pound with some nut worth 1.60 per pund to make 175 pounds of a mixture that is worth 1.30 per pound how much of each should he use?
Wiki User
∙ 14y ago
90a + 160b = 175 x 130 = 22750; a + b = 175 so a = 175 - b
90 (175 - b) + 160b = 22750
15750 - 90b + 160b = 22750
70b = 22750 - 15750
70b = 7000
b = 100 so a = 75
Wiki User
∙ 14y ago
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