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How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nuts that cost $1.50 per pound?

 Feb 9, 2020
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Let the number of pounds of cashews needed=C
The number of pounds of walnuts needed=40 - C

 

1.58C + 0.78[40 - C] =1.50 *40, solve for C
C = 36 pounds of cashews
40 - 36 =4 pounds of walnuts

 Feb 9, 2020

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