A scientist mixes water (containing no salt) with a solution that contains 45% salt. She wants to obtain 135 ounces of a mixture that is 5% salt. How many ounces of water and how many ounces of the 45% salt solution should she use?

Q: A doctor prescribes 4 oz of 7.5% hydrocortisone to a patient. Hydrocortisone is available in 10% and…

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Q: A merchant wants to mix peanuts worth $3 per pound with jelly brands worth $1.50 per pound to make a…

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Q: A recipe for 12 servings of soup calls for 8 cups of chicken broth. How many  cups of broth are…

A: The number of cups of chicken broth required to make a recipe for 12 serving of soup  = 8 cups

Q: A solution of ethyl alcohol that is 75% alcohol by weight is to be used as a bactericide. The…

A: Consider the provided information, Let x is grams of water and y is grams of 95% ethyl alcohol. So,…

Q: A candy distributor needs to mix a 40% fat-content chocolate with a 60% fat-content chocolate to…

A: Given: Two types of chocolates one with 40% fat content and the other one with 60% fat content…

Q: A metallurgist needs 2000 pounds of an alloy that is 80%copper.In stock he has only alloys of 83%…

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Q: you are serving 160 guests a 1/2 cup portion of cubed watermelon. each watermelon weighs 20 pounds…

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Q: Anne and Nancy use a metal alloy that is 13.5% copper to make jewelry. How many ounces of an alloy…

A: Given query is to find the quantity of each type of alloys.

Q: A chemist needs 12L of a 40% alcohol solution. She must mix a 12% solution and a 50% solution. How…

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Q: A recipe calls for 4 eggs for every cup of flour.  If I am using 12 eggs, how many cups of flour…

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Q: A store mixes Brazilian coffee worth $10 per kilogram and Turkish coffee worth $14 per kilogram. The…

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Q: Your dad has made a drink for you, using 1.5 ounces of rum and 2.5 ounces of Coke.  Your mom scolds…

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