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Lilit [14]
2 years ago
5

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 so

ld for $7 per lb.?
Mathematics
1 answer:
Gwar [14]2 years ago
5 0

Answer:

300 lbs

Step-by-step 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

\frac{8x+400}{100+x} =7\\8x+400 = 700+7x\\x=300

300 lbs should be mixed

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