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

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 458318: How much of a 80% alcohol solution must be mixed with 40 gallons of a 14% alcohol solution to obtain a solution of 70% alcohol? Click here to see answer by Alan3354(30937)

 Question 458359: A chemist has 200 milliliters of a solution that is 20% acid. She needs a solution that is 5% acid. How many milliliters of water should she add? Click here to see answer by robertb(4012)

 Question 458446: Jon has 50 ml of a 10% acid solution. How many ml of 45% acid solution should he add to create 35% acid solution? Click here to see answer by nerdybill(6948)

 Question 458617: how much water should be added to 18ml of 13% alcohol solution to reduce the concentration to 9%? Click here to see answer by richwmiller(9135)

 Question 458653: I have a mixture problem that reads: A woman has made 6 quarts of an orange juice punch for a party. The punch contains 12% orange juice. She feels she may need more punch, but she has no more orange juice so she adds 1/2 quart of water to the punch. Find the percent of orange juice in the new mixture. Click here to see answer by ankor@dixie-net.com(15622)

 Question 458764: How many milliliters of pure acid must be added to 150 milliliters of a 70% solution of acid to obtain a 80% solution? Click here to see answer by robertb(4012)

 Question 458795: a) Find the smallest sum of 2 perfect squares that end with the digit 9. b) Yellow buttons are sold in packets of 1080 and green buttons are sold in packets of1350. Siti wants to have an equal number of each type of buttons. (i) Find the least number of packets of each type of buttons Siti has to buy. (ii) Hence find the number of packets of each type of buttons Siti has to buy. c) A straight row of trees is to be planted on a 100m stretch of road. If the trees are equally spaced at 5m, how many trees would be planted? Click here to see answer by robertb(4012)

 Question 458816: How much water needs to be added to a half ounce of a solution in which the active ingredient is 10% so as to make that half ounce of solution into having .5% of the active ingredient? Click here to see answer by stanbon(57211)

 Question 458774: 100 litres of salt solution contains 40 % of water , how much water we need to add to make it 30 % solution of salt? Click here to see answer by simranb(55)

 Question 458891: How long will it take \$700 to double itself at 14% simple interest? Click here to see answer by richwmiller(9135)

 Question 458931: how many gallons of 70% anifreeze solution must be mixed with 70 gallons of 15% antifreeze to get a mixture that is 60% antifreeze? Click here to see answer by htmentor(788)

 Question 459170: how many pounds of candy that sells for 80 cents a pound could be mixed with candy that sell for 1.50 a pound to make a 20 pounds of a mixture to sell at 1.01 a pound Click here to see answer by robertb(4012)

 Question 459531: How many liters of pure acetic acid must be mixed with 10 liters of a 30% acetic acid soluti0n to get a 60% soluti0n? Click here to see answer by ptaylor(2048)

 Question 459678: one number is six more than the second number. Five times the first is 7 less than 4 time the second number. Find the first and second number. Click here to see answer by solver91311(16868)

 Question 459743: A 100% concentrate is to be mixed with a mixture having a concentration of 40% to obtain 55 gallons of a mixture with a concentration of 75%. How much of the 100% concentrate will be needed? Click here to see answer by richwmiller(9135)

 Question 460118: The Candy Emporium sells two types of hard candy--type A sells for \$1.50 per pound and type B sells for \$2.00 per pound. How much of each type of candy should be combined to obtain 20 pounds of a mixture which sells for \$1.80 per pound? Click here to see answer by mananth(12270)

 Question 460253: How much water must be evaporated from 20 gallons of a 10% salt solution in order to obtain a 20% salt solution? Click here to see answer by checkley79(3039)

 Question 460215: How much of a 50% alcohol solution should we mix with 10 gallons of a 35% solution to get a 40% solution? Click here to see answer by checkley79(3039)

 Question 460415: I have problems on knowing where to start on story problems and what to do with them. Here is an example. How much pure acid must be mixed with 80 liters of 10% acid to get 30% acid? Click here to see answer by robertb(4012)
 Question 460415: I have problems on knowing where to start on story problems and what to do with them. Here is an example. How much pure acid must be mixed with 80 liters of 10% acid to get 30% acid? Click here to see answer by richwmiller(9135)

 Question 459513: How many quarts of a 55% acid solution must be mixed with 8 quarts of a 30% acid solution to produce a 45% acid solution? Click here to see answer by jorel1380(2518)

 Question 460436: Sam has 5 rings each weighing 18g, made of an alloy of 10% silver and 90% gold. He decides to melt down the rings and add enough silver to reduce the gold content to 75%. How much silver should he add? Click here to see answer by richwmiller(9135)
 Question 460436: Sam has 5 rings each weighing 18g, made of an alloy of 10% silver and 90% gold. He decides to melt down the rings and add enough silver to reduce the gold content to 75%. How much silver should he add? Click here to see answer by lwsshak3(6456)

 Question 460431: How much 2% alcohol must be mixed with 10% alcohol to get 2000ml of 6% alcohol Click here to see answer by Tatiana_Stebko(1326)
 Question 460431: How much 2% alcohol must be mixed with 10% alcohol to get 2000ml of 6% alcohol Click here to see answer by Alan3354(30937)

 Question 460581: How many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture that is 60% antifreeze. You need to add____ gallons of a 70% antifreeze solution. Click here to see answer by richwmiller(9135)

 Question 460689: A drama club is planning a bus trip to New York City to see a Broadway play. The cost per person for the bus rental varies inversely as the number of people going on the trip. It will cost 30\$ per person if 44 people go on the trip. How much will it cost per person if 60 people go on the trip, to the nearest cent? Click here to see answer by ankor@dixie-net.com(15622)

 Question 451267: how many gallons of pure water should be added to 10 gallons of a solution that is 25% soap to make the solution 5% soap? Click here to see answer by jorel1380(2518)

 Question 449204: Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 63 points. They won 12 more games than they tied. How many wins and how many ties did the team have? Click here to see answer by jorel1380(2518)

 Question 449067: A student has to secure 40% marks to pass. He gets 40 and fails by 40 marks. Find the maximum marks.? plz solve it Click here to see answer by jorel1380(2518)

 Question 449056: The cost of a house in Vancouver, BC is proportional to the size of the house. A 2850 square foot house cost \$182,400, then what is the cost of a 3640 square foot house? Click here to see answer by jorel1380(2518)

 Question 448711: homework question help A barge moves 11 km/h in still water. It travels 50 km up river and 50km down river in a total of 22 h. What is the speed of the current Click here to see answer by jorel1380(2518)

 Question 448708: Another homework question, please help!! Suppose coffee beans from 14 trees are required to produce 17lb of coffee, the amount of each person in the United States drinks each year. How many trees are required to proaduce 487 lb of coffee? Click here to see answer by jorel1380(2518)

 Question 460782: A coffee merchant combines coffee costing \$4.50 per pound with coffee costing \$3.50 per pound. How many pounds of each should be used to make 40 lb of a blend costing \$3.80 per pound? Click here to see answer by jorel1380(2518)

 Question 460770: Bill cycles x km at a constant speed for half an hour. (a) Write an expression to represent i) his speed in km/min. ii) the distance covered in 12y minutes. (b) Hence find the distance covered if x=4 and y=5. Click here to see answer by robertb(4012)

 Question 460850: If 10 grams of salt are present in 500 mL of saline solution, what is the percentage of salt in the solution? For some reason, I came up with %=part/whole*100 as a possible way to solve the problem, but I could be wrong and am lost. Thanks, Click here to see answer by stanbon(57211)

 Question 460995: Gigi has a grocery bag filled with fruit: 6 mangos, 9 bananas, 7 papayas & 3 oranges. If she chooses a fruit @ random, what is probability that she chooses a papaya? Click here to see answer by stanbon(57211)

 Question 448328: Everton college paid \$1525 for an order of 45 calculators. The store paid \$10 for each scientific calculator. The others, all others cost \$53 each. How many of each type was ordered? __________Scientific __________graphing. Click here to see answer by jorel1380(2518)

 Question 460772: How much of an alloy that is 10% copper should be mixed with 500 ounces of an alloy that is 70% copper in order to get an alloy that is 30% copper? Click here to see answer by jorel1380(2518)

 Question 448228: 9 gal of a sugar solution was mixed with 6 gal. of a 90% sugar solution to make a 84% sugar solution. Find the percent concentration of the first solution. Click here to see answer by jorel1380(2518)

 Question 447488: The sum of \$4000 is invested, part at 6% intrest and the rest at 4%. If the annual combined intrest is \$222, how much is invested at each rate? Click here to see answer by jorel1380(2518)

 Question 446924: A pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100 mL of a 12% saline solution. How much of the 10% saline solution did the pharmacist use in the mixture? A 60 mL B 45 mL C 40 mL D 25 mL Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add? A 0.4 liter B 0.5 liter C 2 liters D 8 liters Click here to see answer by jorel1380(2518)

 Question 446868: A wine company needs to blend a California wine with a 5% alcohol content and a French wine with a 9% alcohol content to obtain 200 gallons of wine with a 7% alcohol content. How many gallons of each kind of wine must be used? Click here to see answer by jorel1380(2518)

 Question 446859: The Everton College store paid \$1525 for an order of 45 calculators. The store paid \$10 for each scientific calculator. The others, the graphing calculators cost the store \$53 each. How many of each type of calculator was ordered? Click here to see answer by jorel1380(2518)

 Question 446842: Tickets to a community theater cost \$25 for adults and \$5 for kids. At a recent performance, a total of 305 tickets were sold for \$6025. How many tickets of each kind were sold Click here to see answer by jorel1380(2518)

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