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How many pounds of candy worth $8 per lb. should be mixed with 100 lb. of candy worth $4 per lb. to get a mixture that can be sold for $7 per lb.?

1 Answer

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Answer:

300 lbs

Explanation:

Let x be the number of pounds of candy worth $8 per lb mixed

Now we have total pounds
= 100+x

Value of the mixture
= 100(4)+8x = 8x+400

Since 7 per lb to be sold out we get


(8x+400)/(100+x) =7\\8x+400 = 700+7x\\x=300

300 lbs should be mixed

User Zied Feki
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