Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 484878: how much water should be added to 24 mL of 16% alcohol solution to reduce the concentration to 12%?
Click here to see answer by Tatiana_Stebko(1539)

Question 485051: 7 people meet and shake hands with one another, how many handshakes occurred?
using inductive reasoning, wrte a formula for the number of handshakes if the number of people is n.
the Fibonacci sequence consists of the pattern 1,1,2,3,5,8,13,...., what is the ninth term in the pattern?
look at the successive ratios of ne term to the next, make a conjecture?
list the first eight terms of the sequence formed by finding the differences of sucessive terms in the fibonacci sequence?
Click here to see answer by solver91311(24713)

Question 485278: A landscaper needs to mix 75% pesticide solution with 30 gals. Of 25% pesticide solution to obtain a 60% pesticide solution. How many gallons of the 75% solution must be used ?
Click here to see answer by lwsshak3(11628)

Question 485430: 2 cars start from the same point, but are traveling in opposite directions. Car A has 2 passengers and is traveling at 35 MPH. Car B has 4 passengers and is traveling at 65 MPH. How many hours will it take for them to be exactly 500 miles apart.
Click here to see answer by jorel1380(3719)

Question 485684: A nut wholesaler sells a mix of nuts and cashews. the wholesaler charges 2.65 per pound for nuts and 4.90 per pound for cashews.the mix is to sell for 3.28 per pound. how many pounds of nuts and how many pounds of cashews should be used to make 125 pounds of mix
Click here to see answer by josmiceli(19441)

Question 485902: A pharmacist wishes to mix a solution that is 7 percent minoxidil. she has 80 ml of a 2 percent solution and wishes to add a 9 percent solution to obtain the desired 7 percent solution. How much 9 percent solution should she add?
Click here to see answer by Tatiana_Stebko(1539)

Question 485937: Work for 6186 divided by 6
Click here to see answer by stfuenaira(10)

Question 485937: Work for 6186 divided by 6
Click here to see answer by ej_03(8)

Question 486085: How many quarts of pure antifreeze must be added to 9 quarts of a 40% antifreeze solution to obtain a 60% antifreeze solution?
Click here to see answer by jorel1380(3719)

Question 486260: A car radiator has a 6-liter capacity. If the liquid in the radiator is 40% antifreeze, how much liquid must be replaced with pure antifreeze to bring the mixture up to a 50% solution?
Please show steps...
Click here to see answer by chessace(471)

Question 486301: A metallurgist needs to make 3 oz. of an alloy containing 76% platinum. She is going to melt and combine one metal that is 90% platinum with another metal that is 70% platinum. How much of each should she use?
Click here to see answer by mananth(16946)

Question 486346: Bronze which costs $9.10/kg is made by
combining copper which costs $8.90/kg with
tin which costs $9.50/kg. Find the number
of kg of copper and tin required to make
15.3 kg of bronze.
Click here to see answer by mananth(16946)

Question 486402: The radiator in a car is filled with a solution of 75% antifreeze and 25% water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6 L, how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level?
L
Click here to see answer by ankor@dixie-net.com(22740)

Question 486546: My problem is as follows:
How much pure hydrocloric acid must be added to 40 milliliters of a 50% solution to obtain a 75% acid solution?
Click here to see answer by lwsshak3(11628)

Question 486579: Four hundred grams of an acid solution, which is 12 percent pure acid, should be diluted
by water. How much water is needed to reduce the strength of the solution to 8 percent
pure acid?
Click here to see answer by chessace(471)

Question 486933: One solution contains 50% alcohol and another solution contains 80% alcohol. How many liters of each solution should be mixed to produce 10.5 liters of a 70% alcohol solution? How do i work this out?
Click here to see answer by John10(297)

Question 487016: How many gallons of a 60% antifreeze solution must be mixed with 60 gallons of 25% antifreeze to get a mixture that is 50% antifreeze?
you need to add ___ gallons of a 60% antifreeze solution.
Click here to see answer by josmiceli(19441)

Question 487185: what is the next three terms 1,3,5, _ _ _....
Click here to see answer by jorel1380(3719)

Question 487185: what is the next three terms 1,3,5, _ _ _....
Click here to see answer by ej_03(8)

Question 487188: how much pure acid is in 440 milliliters of a 16% solution?
Click here to see answer by jorel1380(3719)

Question 487281: This is actually a real-life situation. I'm trying to mix 90% alcohol with 50% alcohol so that I get a solution of at least 70%.
(the 50% is a wintergreen that helps the whole thing smell less clinical.)
I am a band director who did very poorly in math many years ago, and am trying to mix a solution of alcohol in order to disinfect mouthpieces that multiple kids will play on as they try instruments.
Click here to see answer by ankor@dixie-net.com(22740)

Question 487925: marin caswell needs 10% hydrochloric acid for a chemistry experiment. how much 5% acid should she mix with 60mL of 20% acid to get a 10% solution?
Click here to see answer by chessace(471)

Question 488179: a pharmascist need 20% boric adic solution.How much 60% boric acid solution must be added to 7.5 liters of an 8% boric acid solution to get the desired strength
Click here to see answer by jorel1380(3719)

Question 488190: A mechanic has 340 gallons of gasoline and 10 gallons of oil to make gas/oil mixtures. He wants one mixture to be 4% oil and the other mixture to be 2.5% oil. If he wants to use all of the gas and oil, how many gallons of gas and oil are in each of the resulting mixtures?
Click here to see answer by josmiceli(19441)

Question 488231: The cooling system of a car has a capacity of 15 liters. If the system is currently fille with a mixture that is 40% antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution that is 50% antifreeze?
Click here to see answer by josmiceli(19441)

Question 488315: How many cups of grapefruit juice must be added to 30 cups of a punch that is 8% grapefruit juice to obtain a punch that is 10% grapefruit juice?

Click here to see answer by stanbon(75887)

Question 488872: How many ounces of pure water must be added to 75 oz of an 8% salt solution to make a 5% salt solution?
Click here to see answer by lwsshak3(11628)

Question 489271: How much pure acid must be added to 60 ml of a 35% solution to produce a mixture that is 80% acid?
ml of pure acid/ml of mixture = concentration of acid
Click here to see answer by stanbon(75887)

Question 489416: How many gallons of 60% antifreeze needs to be mixed with 60 gallons of 20% antifreeze to make a mixture of 50% antifreeze? I am told to use the six step method and i am not too sure what that is.
Click here to see answer by jorel1380(3719)

Question 489524: A florist making bouquets for the bridesmaids in a wedding party used a combination of oceana roses and white roses. He charged 6$ per stem for the oceana roses and $9 per stem for the white roses. The bill for the bouquets was $840. If the florist used a total of 120 roses, how many of each type were used to make bouquets?
Click here to see answer by chessace(471)

Question 489801: How much water must be evaporated from 32oz of a 4% solution to make a 6% salt solution?
Click here to see answer by chessace(471)

Question 489801: How much water must be evaporated from 32oz of a 4% solution to make a 6% salt solution?
Click here to see answer by josmiceli(19441)

Question 490075: a parmasists wishes to mix a solution that is 7% minoxidil. she has on hand 80 ml of a 4% solution and wishes to add some 9% solution to obtain the desired 7% solution. how much 9% solution should she add?
Click here to see answer by stanbon(75887)

Question 490172: how many grams of sugar must be added to 60 grams of a 32% sugar solution to obtain a 50% sugar solution?
Click here to see answer by Earlsdon(6294)

Question 490143: how many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture othat is 60% antifreeze

Click here to see answer by mananth(16946)

Question 490730: James has avalible a 10% alcohal solution and a 60% solution. Find how many liters of each solution should be mixed to make 50 liters of 40% solution.
Click here to see answer by josmiceli(19441)

Question 491167: A 10-lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?
Click here to see answer by josmiceli(19441)

Question 491228: How many gallons of pure water is to be added to 100 gallons of a 30% saline solution to make it a 10% saline solution?
Click here to see answer by stanbon(75887)

Question 491204: Sheila has a lot of stamps in her drawer and will be mailing a number of 2-oz letters costing 66 of postage. How many different ways can she make 66 postage using a 40 stamp and combinations of 5�, 3�, and 2� stamps?
Click here to see answer by Edwin McCravy(20054)

Question 491313: Gloria invested 60,000 pesos for 1 year, part at 9% and part at 4 1/2% simple interest. if the accounts earn 3,438.75 total interest, how much was invested at each rate?
Click here to see answer by mananth(16946)

Question 491069: A dehydrated patient needs a 6.8% saline IV. Unfortunately, the hospital only has bags of 2% and 8% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
Click here to see answer by ankor@dixie-net.com(22740)

Question 491824: How can you obtain the desired gallons of water?

Bucket A can hold 5 gallons, B can hold 9 gallons, and you want to have exactly 1 gallon of water.
Click here to see answer by Alan3354(69443)

Question 491829: In testing a engine, various mixtures of gasoline and methanol are being tried. How much of a 90% gasoline mixture and a 75% gasoline mixture are needed for 1200L of an 85% gasoline mixture?
Click here to see answer by stanbon(75887)

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