Question 1157405
he needs to make 60 liters of a 36% acid solution to test a new product. His supplier only ships a 10% and 40% solution. he decides to make the 36% solution by mixing the 10% solution with the 40% solution. how much of the 10% solution will he need to use
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Similar problem:
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Birdseed costs ​$0.56 a pound and sunflower seeds cost ​$0.86 a pound. Angela​ Leinenbachs' pet store wishes to make a 40​-pound mixture of birdseed and sunflower seeds that sells for ​$0.75 per a pound. How many pounds of each type of seed should she​ use?
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b + s = 40  --- total mix
56b + 86s = 40*75  ---- cost in cents