# Questions on Word Problems: Mixtures answered by real tutors!

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 526457: a candy mix is to be made by mixing candy worth \$12 per kilogram with candy worth \$15 per kilogram to get 120 kilograms of a mixture worth \$13 per kilogram. How many kilograms of each should be used ? Click here to see answer by josmiceli(9649)

 Question 526663: How many gallons of 70% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture of that is 60% antifreeze? Click here to see answer by oberobic(2304)

 Question 526664: How much pure acid should be mixed with 2 gallons of an 80% acid solution in order to get a 90% acid solution. To get 90% acid solution , you need ( ) gallons of pure acid. Click here to see answer by oberobic(2304)

 Question 526678: by wieght, one fertilizer is 20% pottassium, 30% nitrogen, and 50% phosphorus. a second fertilizer has percents of 10, 30, and 60, respectively, and a third fertilizer has percents of 0, 20, 80, respectively. How much of each must be mixed to get 200lb of fertilizer with percents of 12, 28.5, 59.5, respectively? Click here to see answer by stanbon(57219)

 Question 526733: A silversmith has two alloys, one containing 70% silver and the other 40% silver. How much of each should be melted and combined to obtain 400 grams of an alloy containing 61% silver? ______40% alloy ___ g 70% alloy Click here to see answer by Maths68(1474)

 Question 526881: Please help me set up this mixture equation: A car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution? Here is what I have tried 16(.25)+x = 0.4(16-x) Click here to see answer by scott8148(6628)

 Question 527392: God help me, I put aside a whole afetrnoon to figure this out. Click here to see answer by Alan3354(30959)

 Question 527956: Sorry, this was a section that I was not able to cover due to schedule changes. Thank You! The problem: Rhonda mixes some 35% acid solution with some 70% acid solution to make 100mL of a 42% acid solution. How much of the 35% acid solution did she use? Again, Thank You for your time, A student Click here to see answer by oberobic(2304)

 Question 528169: A 50 milliliter solution of acid and water contains 25% acid. How much water do you need to add in order to make a 10% acid solution? Click here to see answer by josmiceli(9649)

 Question 528204: how many liters of 30% acid solution should be mixed with ten liters of 70% acid solution to get a 60% solution Click here to see answer by solver91311(16868)

 Question 528292: How many litres of 50% alcohal solution and 20% alcohal solution must be mixed to obtain 18 Liters of 30% alcohal solution? Click here to see answer by stanbon(57219)

 Question 528439: how do you find the answer to this word problem?: how much water needs to be removed from 20 gallons of a 30 percent salt solution to change it to a 40 percent salt solution? Click here to see answer by scott8148(6628)

 Question 528687: Hello, My name is Eric and I have been having a simple conundrum of being unable to understand this particular question: "The radiator in a particular car needs 40 gallons of a liquid that is composed of 40% antifreeze. Only 20% and 100% antifreeze are availible. How much of each should be mixed to get a 40% solution?" I have attempted to solve this simple, but strangly(please excuse my spelling if this is incorrect) worded problem. I have found that the answer should be near 30 gallons or so parts of 20% and 10 gallons of 100%. Please help me understand the concept as I am confused. Thank You, Eric Click here to see answer by Maths68(1474)

 Question 528824: Using a 43% crystal grade of NaF (Sodium Fluoride) in a feeder the operator must apply enough chemical to a 50 gallon feeder tank to get all of the crystal NaF to completely dissolve or go into solution. The fluoride concentration in the feeder is 17,200 mg/L (1.72% fluoride ion), how many lbs of NaF should be added to the 50 gallon feeder tank to achieve a concentration of 17,200 mg/L? Click here to see answer by solver91311(16868)

 Question 529466: Eric needs to fill up his gas tank which holds 21 liters and is currently a third empty how many liters of gas will it take to fill the tank? Click here to see answer by stanbon(57219)
 Question 529466: Eric needs to fill up his gas tank which holds 21 liters and is currently a third empty how many liters of gas will it take to fill the tank? Click here to see answer by nahataba(3)

 Question 529692: A foundry needs to produce 75 tons of an alloy that is 34% copper. It has supplies of 9% copper and 84% copper alloy. How many tons of each must be mixed obtain he desired results Click here to see answer by ankor@dixie-net.com(15624)

 Question 529818: A tank contains 20 gallons of antifreeze solution.  When it is full, it contains 15% antifreeze.  How many gallons must be replaced by an 80% antifreeze solution to get 20 Click here to see answer by stanbon(57219)

 Question 529835: A tank contains 20 gallons of antifreeze solution. When it is full, it contains 15% antifreeze. How many gallons must be replaced by an 80% antifreeze solution to get 20 gallons of a 70% solution? Click here to see answer by josmiceli(9649)

 Question 529827: A tank contains 20 gallons of antifreeze solution. When it is full, it contains 15% antifreeze. How many gallons must be replaced by an 80% antifreeze solution to get 20 gallons of a 70% solution? Click here to see answer by ankor@dixie-net.com(15624)

 Question 529855: A 25% and a 40% salt solution are combined to make 10 gallons of 35% salt solution. How much of each strength solution is required? Click here to see answer by josmiceli(9649)

 Question 530254: A chemist wants to make a 45% solution of Sulfuric Acid more concentrated by addingpure sulfuric acid. How much pure sulfuric acid must be added to get an 80% solution of sulfuric acid? Click here to see answer by josmiceli(9649)

 Question 530337: How many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 50% antifreeze? I don't have the first clue on how to figure this out. Can you please explain this process? Click here to see answer by Earlsdon(6287)

 Question 530389: How many liters of water must be added to 70L of a 40% acid solution in order to procude a 28% acid solution? Click here to see answer by scott8148(6628)

 Question 530662: MOtion Problems... Don't understand how to do them Click here to see answer by oberobic(2304)

 Question 530789: How many quarts of pure (100%) antifreeze and a 50% antifreeze and 50% water mix should be combined to make 14 quarts of 70% antifreeze and 30% water? Click here to see answer by ptaylor(2048)

 Question 530891: If nuts made up five eights of the mixture, what was the ratio of raisins to nuts? Click here to see answer by oberobic(2304)

 Question 530963: a 4% salt solution is mixed with a 16% salt solution. How many millimeters of each solution are needed to obtain 600 milliliters of a 10% salt solution? Click here to see answer by stanbon(57219)

 Question 531021: I'm trying to figure out the formula for this word problem. If I can figure out the formula for mixtures I should be able to do the entire worksheet. Sample Problem: A Chemist has a solution that is 12% acid and another solution that is 42% acid. She wants 10L of solution that is 30% acid. How much of each solution should she mix? Click here to see answer by scott8148(6628)
 Question 531021: I'm trying to figure out the formula for this word problem. If I can figure out the formula for mixtures I should be able to do the entire worksheet. Sample Problem: A Chemist has a solution that is 12% acid and another solution that is 42% acid. She wants 10L of solution that is 30% acid. How much of each solution should she mix? Click here to see answer by oberobic(2304)

 Question 531060: A Chemist has a mixture that is 10% iodine and another that is 50% iodine. How much of each solution should the druggist use to get 100 ml of a solution that is 20% iodine Click here to see answer by stanbon(57219)
 Question 531060: A Chemist has a mixture that is 10% iodine and another that is 50% iodine. How much of each solution should the druggist use to get 100 ml of a solution that is 20% iodine Click here to see answer by oberobic(2304)

 Question 531088: A chemist needs to mix a 75% acid solution with a 50% acid solution to obtain 10 milliliters of a 60% acid solution. How many milliliters of each of the solutions must be used? Click here to see answer by KMST(1864)

 Question 531234: A solution of 500-ml was 84% Alcohol. How many gallons of the solution would need to be evaporated to be only 80% alcohol Click here to see answer by stanbon(57219)

 Question 531551: The manager of a food store wants to create a blend of herbs that she can sell for \$1 per once. She decides to make 8 ounces of a blend of oregano and sage. What will be the ratio of oregano to sage in the mixture? Click here to see answer by oberobic(2304)

 Question 531942: How much of a 50% acid solution must be mixed with 80 gallons of a 14% acid solution to obtain a solution that is 40% acid? I feel like I've done something like this before, but I just can't get started. Thank you for any help! Click here to see answer by Earlsdon(6287)

 Question 532192: A 75 mL solution of acid in water contains 25% acid. How much water needs to be added in order to make a 5% acid solution? Click here to see answer by Alan3354(30959)

 Question 532246: The manager of a coffee shop has one type of coffee that sells for \$8 per pound and another that sells for \$15 per pound. The manager wishes to mix 60 pounds of the \$15 coffee to get a mixture that will sell for \$14 per pound. How many pounds of the \$8 coffee should be used? Click here to see answer by josmiceli(9649)

 Question 532197: Margo has 40 milliliters of 25% solution. How many milliliters of 60% solution should she add to obtain the required 30% solution? Click here to see answer by mananth(12270)

 Question 532268: A metal alloy weighing 10 lb. and containing 10% nickel is melted and mixed with 8 lb. of pure nickel. What percent of the resulting alloy is nickel? Click here to see answer by lwsshak3(6463)

 Question 532395: a pharmascist has a 40% acid solution and a 25% acid solution. How many liters of each must be mixed to form 147 liters of a 34% acid solution? Click here to see answer by stanbon(57219)

 Question 532453: I would appreciate help working this problem. I have tried it many different ways. The problem states: to clean a teakettle, add 4 parts water to 1 part vinegar. How much of each ingredient is needed to make 3 cups of this mixture? I am not sure where to start. Thank you. Click here to see answer by jkrsmsc76(5)

 Question 532666: The speed of a stream is 5 mph. If a boat travels 72 miles downstream in the same time that it takes to travel 36 miles upstream, what is the speed of the boat in still water? Click here to see answer by stanbon(57219)

 Question 532769: how much 14-karat gold should be melted with 4 ounces of pure gold to produce 18-karat gold? (hint: pure gold measures 24 karats...18 karats= 18/24) Thanks! Click here to see answer by josmiceli(9649)

 Question 533133: How many mg of a metal containing 45% nickel must be combined with 6 mg of pure nickel to form an alloy containing 78% nickel? Click here to see answer by josmiceli(9649)

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