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

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 504591: I have been stuck on this word problem for forever! Please help me. Army requirements call for 55 coffee grounds per quart of coffee. The cooks have one barrel of coffee with 67.5 grounds per quart in it and another barrel with 45 grounds per quart in it. How many quarts of each should they mix together to make up 1 quarts? the answer is: eight quarts of the 67.5 grounds/quart and ten quarts of the 45 grounds/quart. I just can't figure out how they got these answers. I've gotten a set of answers of my own that will work, but I would like to know how to get these answers. thanks Click here to see answer by Theo(3458)
 Question 504591: I have been stuck on this word problem for forever! Please help me. Army requirements call for 55 coffee grounds per quart of coffee. The cooks have one barrel of coffee with 67.5 grounds per quart in it and another barrel with 45 grounds per quart in it. How many quarts of each should they mix together to make up 1 quarts? the answer is: eight quarts of the 67.5 grounds/quart and ten quarts of the 45 grounds/quart. I just can't figure out how they got these answers. I've gotten a set of answers of my own that will work, but I would like to know how to get these answers. thanks Click here to see answer by jorel1380(2518)

 Question 504567: Please help me with this equation: You have a total of \$5000 invested in two simple interest accounts. On one account, the annual simple interest rate is 6%. On the second account, the annual simple interest rate is 8%. The total annual interest earned in one yar is \$370. How much is invested in each account? Click here to see answer by Theo(3458)

 Question 504652: How much 10% solution and how much 45% solution should be mixed together to make 100 gallons of 25% solution? Click here to see answer by jorel1380(2518)

 Question 504987: How much pure acid should be mixed with four gallons of a 50% acid solution in order to get a 60% acid solution? Click here to see answer by oberobic(2304)

 Question 505087: an auto mechanic needs 24 gallons of ani-freeze with a 30 percent glycol concentration. he has on hand only anit-freeze with a 40 percent glycol concentration and one with a 10 percent glycol concentration. How much of the 40 percent should he mix with the 10 percent to get the 24 gallons of 30 percent solution he needs? Click here to see answer by Earlsdon(6287)

 Question 505120: find a number between 40 and 50 that is composite and whose prime factors add up to 15 Click here to see answer by richard1234(5390)

 Question 505166: How much acid at 70% concentration must be added to 12 ounces at 40% concentration in order to obtain a mixture that is 50% acid? -I know the answer will be closer to 40 than 70, but I'm just not sure how to work the problem out. Click here to see answer by ptaylor(2048)

 Question 505302: Suppose that X liters of 38% acid solution are mixed with y liters of a 42% solution to obtain 100L of a 39% solution. One equation in a system for solving this problem is x+y=100. Which one of the following is the other equation? A. 42x+38y=0.39*100 B 0.38x+0.42y=0.39*100 C. 0.42x+0.38y=0.39*100 D. 38x+42y=39 Click here to see answer by stanbon(57282)

 Question 505358: Carlos bought 14 pounds of sugar for 9 dollars . How many dollars did he pay per pound of sugar? Click here to see answer by Edwin McCravy(8893)

 Question 505669: Pure acid is to be added to a 5% acid solution to obtain 95L of 30% solution. What amounts of each should be used? How many Liters of 100% acid should be used to obtain the solution? Click here to see answer by stanbon(57282)

 Question 505697: My algebra 2 question on my homework worksheet is this: "A health clinic uses a solution of bleach to sterilize Petri dishes in which cultures are grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?" How would you solve that? Click here to see answer by ankor@dixie-net.com(15645)
 Question 505697: My algebra 2 question on my homework worksheet is this: "A health clinic uses a solution of bleach to sterilize Petri dishes in which cultures are grown. The sterilization tank contains 100 gal of a solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?" How would you solve that? Click here to see answer by oberobic(2304)

 Question 505734: it takes hank twice as long to build one table as it takes to build one chair. If it takes 30 hours to make a dining room set of 1 table and 4 chairs. how long does it take to make the table? Click here to see answer by oberobic(2304)

 Question 505748: A solution contains 60 oz. of water and 15 oz. of acid. If a 60% acid solution results from water evaporation, then how many ounces of water have evaporated? Click here to see answer by josmiceli(9664)

 Question 505849: How many L of water is to be added to a 50% acid solution to obtain 40% acid solution? Click here to see answer by richwmiller(9135)

 Question 505846: A bag of peanuts is worth \$. 42 less than the same size of cashews. Equal amounts of peanuts and cashews are used to make 40 bags of a mixture that sells for \$1.10 per bag. How much is a bag of cashews worth? Click here to see answer by ptaylor(2048)

 Question 505955: If a tank takes 20,30, and 60 minutes by three pipes to fill up seperately, how many minutes will it take to fill up with all three pipes together? Click here to see answer by josmiceli(9664)

 Question 506363: An automobile radiator holds 24 liters of fluid. There is currently a mixture in the radiator that is 70% antifreeze and 30% water. How much of this mixture should be drained and replaced by pure antifreeze so that the resulting mixture is 80% antifreeze? Click here to see answer by scott8148(6628)

 Question 506537: How much 5% hcl must be mixed with 60ml of 20% hcl to get a 10% solution? I think that it would just be another 60ml, but I'm not sure. Click here to see answer by mananth(12270)

 Question 506425: A 20-pound mixture of banana chips and dried apricots cost \$6.89 per pound the mixture contains 6 pounds of banana chips that cost \$1.99 per pound. what is the cost per pound of the dried apricots?. Click here to see answer by ankor@dixie-net.com(15645)

 Question 506535: how many litters of a 40% alcohol solution must be mixed with 65% solution to obtain 20 liters of a 50% solution? Click here to see answer by mananth(12270)

 Question 506747: a guy has coffee worth \$60 a pound that he wishes to mix with 50 pounds of coffee worth \$90 a pound to get a mixture that can b sold for \$80 a pound. How many pounds of the \$60 coffee should she use Click here to see answer by stanbon(57282)

 Question 507315: How many quarts of water [0% alcohol] need to be added to 50 quarts of 80% alcohol to obtain a 10% alcohol solution? Click here to see answer by stanbon(57282)
 Question 507315: How many quarts of water [0% alcohol] need to be added to 50 quarts of 80% alcohol to obtain a 10% alcohol solution? Click here to see answer by lwsshak3(6481)

 Question 507316: how many liters should be drained and replaced with pure antifreeze from a radiator containing 12 liters of 40 percent antifreeze to increase the concentration to 50 percent antifreeze. Click here to see answer by stanbon(57282)

 Question 507356: A large solar heating panel requires 120 gallons of a fluid that is 30% antifreeze. The fluid comes in either a 50% solution or a 20% solution. How many gallons of each should be used to prepare the 120 gallon solution. My professor only wants us to set up the equation to solve, but not to actually solve. Thanks. Click here to see answer by lwsshak3(6481)

 Question 507559: normal body temperature is98.6 degress F . during an illness it rose 3.2 degressF . what was the new temperature? Click here to see answer by oberobic(2304)
 Question 507559: normal body temperature is98.6 degress F . during an illness it rose 3.2 degressF . what was the new temperature? Click here to see answer by jim_thompson5910(28536)

 Question 507560: A family read the odometer before starting a trip ., it read 27182.1 and they know they will be driving 227.8 m .What will it read at the end of the trip ? Click here to see answer by jim_thompson5910(28536)

 Question 507561: suppose a house in indianapolis with an index of 79 is valued at 96,000.Find what a similar house would cost in tampa with an index of 72. Click here to see answer by oberobic(2304)

 Question 508286: If you need 425mL of a .90% saline solution but only have 25.0% saline, how would you go about making the .90% solution? Do calculation and explain in words. Click here to see answer by oberobic(2304)

 Question 508314: The dosage of a medicine ordered by a doctor is 40 mL of a 16% solution. A nurse has available both a 20% solution and a 4% solution of this medicine. How many milliliters of each could be mixed to prepare this 40-mL dosage? Click here to see answer by Maths68(1474)

 Question 508089: A chemist has two solutions H2SO4. One has a 40% concentration and the other one has a 25% concentration. How many liters of each solution must be mixed to obtain 106 liters of a 36% solution? Click here to see answer by Maths68(1474)

 Question 508088: One solution is 10% acid, another solution is 30% acid. find the volume of each solution that must be used to get a final solution of 40 liters that is 18% acid. Click here to see answer by Maths68(1474)

 Question 508049: How many gallons of a liquid that is 40% alcohol must be mixed with 8 gallons of one that is 30% alcohol to obtain a mixture that is 35% alcohol? Click here to see answer by Maths68(1474)

 Question 508342: A tea mixture was made from 30lb of tea that cost \$6.00 per pound and 70lb of tea that cost \$3.20 per poumd.Find the cost per pound of the tea mixture? Click here to see answer by Maths68(1474)

 Question 508018: A chemistry student has a 15% hydrochloric acid solution and a 40% hydrochloric acid solution. How many liters of each should she mix to get 10 liters of a hydrochloric acid solution with a 30% acid concentration? Click here to see answer by Maths68(1474)

 Question 508935: A lab tech has one solution that is 45% acid and another that is 70 % acid. How much of each is needed to make 100 mL of a 65% acid solution? Click here to see answer by stanbon(57282)

 Question 508940: I have a 70% meat and30% meat need to get 37% but it has to weigh 3060pounds Click here to see answer by mananth(12270)
 Question 508940: I have a 70% meat and30% meat need to get 37% but it has to weigh 3060pounds Click here to see answer by josmiceli(9664)
 Question 508940: I have a 70% meat and30% meat need to get 37% but it has to weigh 3060pounds Click here to see answer by Theo(3458)

 Question 509133: A 30 milliliter solution of acid in water contains 20% acid. How much acid is in the solution? Click here to see answer by Alan3354(30993)

 Question 509281: Margo has 40 millimeters of 25% solution. how many millimeters of 60% solution should she add to obtain the required 30% solution? Click here to see answer by stanbon(57282)

 Question 509429: How much sand must be added to 250 kg of a cement mixture that is 22% sand to have a mixture that is 25% sand? Click here to see answer by josmiceli(9664)

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