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  • 5 years ago

a merchant has coffee worth $5 a pound that she wishes to mix with 50 pounds of coffee worth $9 a pound to get a mixture worth $6 a pound. how many pounds of the $5 coffee be used?

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  1. anonymous
    • 5 years ago
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    Haven't seen these ones in forever, I think this is how you do it. Let x be the pounds of $5 coffee used. So using the equation, total price/total pounds=price per pound (5x+50*9)/(x+50)=6 Solving for x, you get 150

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