SOLUTION: A candy store owner has chocolate candies worth $4.00 per pound and sour candies worth $0.80 per pound. How much of each kind of candies should she combine to get 70 lb of mixed ca

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Question 1017988: A candy store owner has chocolate candies worth $4.00 per pound and sour candies worth $0.80 per pound. How much of each kind of candies should she combine to get 70 lb of mixed candies worth $2.40 per pound? (Include units with your numerical answers.)


Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
x, amount of the $4 per pound candies
70-x, amount of the $0.8 per pound sour candies



4x%2B0.8%2870-x%29=2.4%2A70

4x%2B56-0.8x=2.4%2A70
3.2x%2B56=2.4%2A70
3.2x=2.4%2A70-56
x=%282.4%2A70-56%29%2F3.2
highlight%28x=35%29


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You may also enjoy the benefit of this instructive video example of this very common type of two-part mixture problem:
Using just one variable for a two-part mix problem

The problem type can also be solved using TWO variables if desired.