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

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 380090: Determine the amount of a 25% acid solution and a 80% acid solution needed to make 250 mL of a 40% acid solution. Click here to see answer by stanbon(57347)

 Question 380155: A chemist needs 12 liters of a 40% alcohol solution. She must mix a 20% solution and a 50% solution. How many liters of each well be required to obtain what she needs? Click here to see answer by mananth(12270)

 Question 380200: one number is eight more than a second number. six times the first is 8 less than 5 times the second. Click here to see answer by mananth(12270)

 Question 380211: A pharmacist needs 50 liters of a 60% alcohol solution. She currently has available a 20% solution and a 70% solution. How many liters of each must she use to make the 60% solution? Click here to see answer by stanbon(57347)

 Question 380207: Frank has half as many again as sally who has half again as many again as mary. Altogether they have 209. how many has each? Click here to see answer by stanbon(57347)

 Question 380216: Explain why (square root of -64) is not a real number and why (square root of 3,-64) is a real number Click here to see answer by stanbon(57347)

 Question 380232: Use the definition of rational exponents to write the expression . simplify if possible. Click here to see answer by kingme18(98)

 Question 380338: Education. The Mecklenberg County Public Schools stipulate that a standard school day will average at least 5 hr, excluding meal breaks. For the first four days of one school week, bad weather resulted in school days of 4 hr, 6 hr, 3 hr, and 6 hr. How long must the Friday school day be in order to average at least 5 hr for the week? Click here to see answer by richard1234(5390)

 Question 380450: How many liters of a 20% alcohol solution must be mixed with 60 L of a 70% solution to get a 50% solution? Click here to see answer by stanbon(57347)

 Question 380379: How many gallons of 50% antifreeze solution must be mixed with 100 gallons of 20% antifreeze solution to get 40% antifreeze solution? Click here to see answer by Fombitz(13828)

 Question 380613: How much pure acid should be mixed with 2 gallons of a 40% acid solution in order to get a 80% acid solution? Click here to see answer by ewatrrr(10682)

 Question 380612: How much pure acid should be mixed with 4 gallons of a 60% acid solution in order to get a 80% acid solution? Click here to see answer by ewatrrr(10682)

 Question 380610: How much pure acid should be mixed with 6 gallons of a 10% acid solution in order to get a 90% acid solution? Click here to see answer by ewatrrr(10682)

 Question 381898: Hello tudor, A friend ask me this and so i started helping them. However, i got 160 lb. However, it sounded a bit weird so i want to double check. How many pounds of seed worth \$1.05 per pound must be mixed with 30 pounds of seed worth \$.90 per pound in order to produce a mixture to sell for \$1.00 per pound? Click here to see answer by Earlsdon(6287)

 Question 382209: A beverage wholesaler wants to create a new punch. He will mix fruite juice worth \$3 a gallon and rum worth \$8 a gallon. He wants to obtain 145 gallons worth of punch worth \$5 a gallon. How much of each beverage should he use? Click here to see answer by ptaylor(2048)

 Question 382640: A 400 g solution is 25% salt. How much salt must be added to produce a solution that is 40% salt? Click here to see answer by robertb(4012)

 Question 382651: How many pounds of salted nuts selling for \$1.20 per pound should be mixed with 4 pounds of salted nuts selling for \$2.80 per pound to obtain a mixture selling for \$1.84 per pound? Click here to see answer by robertb(4012)

 Question 382808: How much coffee costing \$3 a pound should be mixed with 5 pounds of coffee costing \$3.50 a pound obtain a mixture costing \$3.25 a pound? Click here to see answer by mananth(12270)

 Question 382783: How much pure antifreeze should be added to 3 gallons of a 50% antifreeze solution to produce a solution that is 60% antifreeze? I did a table already containing the total amount at the bottom known as .6 for me but I really don't understand this question. Thanks, Jazlyn Click here to see answer by Fombitz(13828)

 Question 383102: A store owner has two different blends of coffee. Brand A sells for \$10.50 a pound and Brand B sells for \$5.75 a pound. The owner wants to create a 25-pound mixture of Brand A and B to sell for \$8.22 a pound. How many pounds of each blend should he use? Click here to see answer by stanbon(57347)

 Question 383116: a 14 litre solution is 25% antifreeze and 75% water, how much antifreeze should i add to make the solution 30% antifreeze? Click here to see answer by ptaylor(2048)

 Question 383323: Beer A is 6% alcohol, Beer B is 2% alcohol. how many liters of beer A should be mixed in order to get 50 liters of mixture that is 3.2% alcohol. solution A + B = 50 liter 6%+2% = 3.2% alcohol .06 + .02= 3.2 I am stuck on this calculation, need to get one of the variables alone...like A but am not sure where to go from this point... Click here to see answer by Fombitz(13828)

 Question 383610: how much oil should be mixed with 26 gallons of gas if the recommended ratio of gasoline to oil is 50 to 1 Click here to see answer by CharlesG2(828)

 Question 383606: Two liters of 10% acidic solution is to be reduced to 3% by adding water. How much water should be added. Give answer to nearest tenth. Click here to see answer by Fombitz(13828)

 Question 383854: how much water must evaporate to change 50 pounds of a 5% salt solution to an 8% salt solution? Click here to see answer by robertb(4012)

 Question 383850: How much of an alloy that is 40% copper should be mixed with 500 ounces of an alloy that is 70% copper in order to get an alloy that is 60% Click here to see answer by scott8148(6628)

 Question 383890: Mary made 2L of orange juice from concentrate. she used 3 parts of water for each 1 part of concentrate. how much concentrate did she use? Click here to see answer by rfer(12660)

 Question 383908: how many gallons of water must be added to 20 gallons of 15% salt solution if the resulting solution is to only contain 11% salt Click here to see answer by ankor@dixie-net.com(15652)

 Question 383715: If 2 sweaters cost \$28.90, how much would 9 sweaters cost? The cost is \$____? When I try solving the problem the answer that I got was \$130.05! How I got the answer I add 28.90 four times plus 14.45(because that's the half of 28.90) and I got 130.05! Click here to see answer by ankor@dixie-net.com(15652)

 Question 384201: you have 80%juice 20%water solution how much water should you add so it becomes 65% juice 35% water?? Click here to see answer by Alan3354(30993)

 Question 384059: Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb mixture that is 12% protein? Click here to see answer by ankor@dixie-net.com(15652)

 Question 384188: Solve: How many ml of a 70% acid solution must be added to a 30% acid solution to get 100 ml of a 40% acid solution? Click here to see answer by ankor@dixie-net.com(15652)

 Question 384381: how many gallons of a 15% sugar solution must be mixed with 5 gallons of a 40% sugar solution to make a 30% sugar solution Click here to see answer by Theo(3464)

 Question 384479: A chemist has 800 g of a dye solution that is 20% of its original strength. How much dye must be added to increase the strength to 50%? Click here to see answer by mtmorro(23)

 Question 383733: the carters purchase scb for 1.99 per pound and gmb for 1.39per pound if they wish to purchase 20 pounds and spend \$32.00 on birdseed how many pounds of each type should they buy Click here to see answer by mtmorro(23)

 Question 384656: How much water should be added to a 72 ounces of a 10% salt solution to make a 3% salt solution? Click here to see answer by edjones(7569)

 Question 384774: The chemistry lab at the University of Hardwoods keeps two acidic solutions on hand. One is 20% acid and the other is 35% acid. How much 20% acid solution and how much 35% acid solution should be used to prepare 25 liters of a 26% acid solution? Click here to see answer by stanbon(57347)

 Question 384814: A 30 L solution is 80% antifreeze. How much water must be added to produce a solution that is 60% antifreeze? Click here to see answer by ptaylor(2048)

 Question 384807: Jane took three hours to drive to her friend's home on the weekend. Her average speed was 85km/hr for the first two hours. What was her average speed for the last hour of the trip if her average speed was 75km/hr for the whole trip? Click here to see answer by ptaylor(2048)

 Question 384856: Can you please show me how to set up this problem so I can solve it: How much water should be added to a 150ml of a 25% salt solution to make a 15% salt solution? Click here to see answer by stanbon(57347)

 Question 385056: An auto mechanic has 300mL of battery acid solution that is 60% acid. he must add water to this solution to dilute it so thst it is only 45% acid. How much water should he add? Click here to see answer by stanbon(57347)

 Question 385221: seed cost .20/oz nuts cost .30/oz a 42oz mixture costs \$11.00 how many ounces of seeds and nuts were used in this mixture? I do not know how to put this into an algebra problem. Thank you. Click here to see answer by stanbon(57347)

 Question 385339: a 120 ml of soysauce contains 35% soybean.find the amount of soybean in the bottle Click here to see answer by stanbon(57347)

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