Asked by pablo
yolanda sells two grades of dog food. type a sells for 75 cents per pound and type b sells for 52 cents per pound. how many pounds of each must be used to produce 600 pounds of mixture selling for 60 cents per pound?
Answers
Answered by
Steve
if a lbs are type a, then the rest (600-a) are type b. So, add up the parts and make sure it matches the whole:
75a + 52(600-a) = 60*600
75a + 52(600-a) = 60*600
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