Question

(13) The Modern Grocery has cashews that sell for $5.00 a pound and peanuts that sell

for $2.00 a pound. How much of each must Sam, the grocer, mix to get 120 pounds
of a mixture that he can sell for $360.

Answer 1

solution:

x = pounds of cashews = 20

y = pounds of peanuts = 70

Explanation:

x = pounds of cashews

y = pounds of peanuts

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4.75x + 2.50y = 3.00*90

x + y = 90

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put the system of linear equations into standard form

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4.75x + 2.50y = 270

x + y = 90