SOLUTION: a grocer has some coffee which is priced at $3 per pound and some which is priced at $5 per pound. To make a mixture of 100 pounds to be sold at $4 a pound, how many pounds of eac

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Question 840424: a grocer has some coffee which is priced at $3 per pound and some which is priced at $5 per pound. To make a mixture of 100 pounds to be sold at $4 a pound, how many pounds of each kind must be mixed ?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
http://www.algebra.com/algebra/homework/word/mixtures/mixture-price-two-part-both-parts-

http://www.algebra.com/algebra/homework/word/mixtures/mixture-price-two-part-both-parts

The lesson is what you need. (one of those addresses WILL work; not sure which).
The same general problem has been asked and answered many, many, many times.