Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 1094740: a laboratory needs to make a 21-liter batch of a 40% acid solution. how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?
Click here to see answer by greenestamps(13200)

Question 1094741: How many gallons of a 90% antifreeze solution must be mixed with 80 gallons of 30% antifreeze to get a mixture that is 80% antifreeze?
Click here to see answer by greenestamps(13200)

Question 1094993: Thank you so much!! A store owner wants to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $16.70 per pound should be mixed with 12 pounds of trail mix costing $4.20 per pound to create a mixture worth $10.93 per pound.
The owner needs to mix
pounds of chocolate (round to the nearest whole pound - NO COMMAS).
Click here to see answer by josgarithmetic(39617)

Question 1095106: A pharmacist wishes to mix a solution that is 7% Minoxidil. She has on hand 60 ml of a 3% 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 greenestamps(13200)

Question 1095293: In the United States, the number of nuclear power plants in the south exceeds that in the midwest by 11. together these two areas have a total of 73 nuclear power plants. How many are located in the South?
Click here to see answer by ikleyn(52782)

Question 1095273: Justin's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Justin
$4.60
per pound, and type B coffee costs
$5.95
per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of
$493.90
. How many pounds of type A coffee were used?
Click here to see answer by josgarithmetic(39617)

Question 1095515: a 5 liter container is full of a 28 percent acid solution which needs to be diluted to a 20 percent acid solution. How much of the 28 percent must be drained off and replaced with distilled water?
I just needed help setting up the problem. The distilled water confused me as to what values I should put in.
Click here to see answer by greenestamps(13200)

Question 1095527: How many litres of 15% weedkiller mixture must be added to 5 litres of 10% weedkiller
mixture to make a 12% weedkiller mixture?

Click here to see answer by Theo(13342)

Question 1095549: A chemist has a 1% solution of alcohol to mix with a 56% solution to get 110L of a final mixture that is 26% alcohol. How much of each of the original solutions should he use?
Click here to see answer by josgarithmetic(39617)

Question 1095577: Hello Tutors,
the problem I am having trouble with is the following:
The purity of gold is measure in karats, with pure gold being 24 karats. Other purities of gold are expressed as proportional parts of pure gold. Thus 18 karat gold is 18/24 or 75% pure gold, 12 karat gold is 12/24 or 50% pure gold and so on. How much 14-karat gold should be mixed with pure gold to obtain 20 grams of 16-karat gold?
I have tried a formula and I get the answer 3.2 but when I submit it it said that the correct answer is 16 (which I think is wrong). If you can help me clarify if that is the answer or what would the real answer be, I really appreciate it.
Thank you!
Click here to see answer by josgarithmetic(39617)

Question 1095574: Hans paid $1.50 ea. For programs to the game. He sold all but 20 of them for $ 3.00 ea. and made a profit of $15. How many programs did he buy? ( hint: profit= selling price- purchase price)
Click here to see answer by jim_thompson5910(35256)

Question 1095643: One canned juice drink is 15% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 5L that is 12% orange juice?
How many liters of the 15% orange juice should be in the mixture?
Click here to see answer by josgarithmetic(39617)

Question 1095642: A person's website specializes in the sale of rare or unusual vegetable seeds. He sells packets of sweet-pepper seeds for $2.48 each and packets of hot-pepper seeds for $4.72 each. He also offers a 16-packet mixed pepper assortment combining packets of both types of seeds at $2.76 per packet. How many packets of each type of seed are in the assortment?
There are _____ packets of sweet-pepper seeds and
________ packets of hot-pepper seeds.
Click here to see answer by greenestamps(13200)

Question 1095742: A solution of salt and water is 20% salt. If 25% of the water is removed, what is the percentage of salt in the new solution?
Click here to see answer by josmiceli(19441)

Question 1095872: A 1000-gram salt-and-water solution contains 80 g of salt. This mixture is left in the open air, and 200 g of water evaporates from the solution. What is the percent concentration of salt in the remaining solution?
Click here to see answer by Boreal(15235)

Question 1096223: ;A gardener has 10 lb of grass seed which cost $0.80 per pound. How many pounds of a grass seed which cost $1.20 per pound should be mixed with the 10 lb of grass seed to produce a mixture which sells for $1.10 per pound?

Click here to see answer by josgarithmetic(39617)

Question 1096481: A scientist mixes water (containing no salt) with a solution that contains
40%
salt. She wants to obtain
200
ounces of a mixture that is
5%
salt. How many ounces of water and how many ounces of the
40%
salt solution should she use
Click here to see answer by Alan3354(69443)

Question 1096521: How many 8-ounce glasses can be filled from 7 32-ounce bottles of soda? How glasss can be filled? I got this question and I know its 4 but the 7 confuses me.

Click here to see answer by Fombitz(32388)

Question 1096542: A 12-ounce mixtures of window is cleaner is 6% alcohol.How many ounce of the mixture is alcohol
Click here to see answer by Alan3354(69443)

Question 1096641: How much of a 40% antifreeze solution must a mechanic mix with a 70% antifreeze solution if she needs 25 gallons of a 50% antifreeze solution?
Click here to see answer by josgarithmetic(39617)

Question 1096712: A mixture of 8% disinfectant solution is to be made from 10% and 5% disinfectant solution. How much of each solution should be used if 25 gallons if 8% solution are needed?
Click here to see answer by Alan3354(69443)

Question 1096727: You need a 30% alcohol solution. On hand, you have a 385 mL of a 20% alcohol mixture. You also have 85% alcohol mixture. How much of the 85% mixture will you need to add to obtain the desired solution?
Click here to see answer by josgarithmetic(39617)

Question 1096715: A mixture of 8% disinfectant solution is to be made from 10% and 5% disinfectant solution. How much of each solution should used if 25gallons of 8% solution are needed?
Click here to see answer by ikleyn(52782)

Question 1096761: Jean runs 10 mi and then rides 8 mi onher bicycle in a biathlon. She rides 8 mph faster than she runs. If the total time for her to hr, complete te race is 1.75 hr determine her speed running and her speed riding her bicycle.

Click here to see answer by josgarithmetic(39617)

Question 1096956: A scientist has acid solutions with concentrations of 4% and 15%. He wants to mix some of each solution to get 44 milliliters of solution with a 12% concentration. How many milliliters of each solution does he need to mix together?
Click here to see answer by Fombitz(32388)

Question 1097016: In your chemistry class, you are given a bottle of 5% acid solution and a bottle of 2% acid solution. You need 60 mL of a 3% solution for an experiment. How much of each solution do you need to mix together to get the desired concentration?
Click here to see answer by jorel1380(3719)

Question 1097052: John made sixty ounces of mixed fruit.How many pounds of mixed fruit did he use?

Click here to see answer by josgarithmetic(39617)

Question 1097081: a and b working together can do a given job in 4 days, b and c together can do the job in 3 days and a and c together can do it in 2.4 days. In how many days can each do the job working alone.
Click here to see answer by josgarithmetic(39617)

Question 1097112: a solution that is 10% antifreeze is mixed with a solution that is 20% antifreeze to produce 50L of solution that is 15.6% antifreeze.how many liters at the 10% solution are used?
Click here to see answer by josgarithmetic(39617)

Question 1097256: Nick is saving money for his college education. He invests some money at 9%, and $1400 less than that amount at 6%. The investments produced a total of $201 interest in 1 yr. How much did he invest at each rate.
Click here to see answer by ikleyn(52782)

Question 1097255: Nico is saving money for his college education. He invests some money at 9%, and 1600 less than that amount at 7%. The investments produced a total of $224 interest in 1 yr. How much did he invest at each rate.
Click here to see answer by ikleyn(52782)

Question 1097292: Don�s dad is a salesman. He receive a salary of $150 a week +1.2% of his sales. If his total sales for a week for $2600, how much money did he earn that week?
Click here to see answer by Fombitz(32388)

Question 1097515: If 1/4 of a mixture rice and corn was replaced by corn alone, the resulting mixture becomes 55% corn. What was the percentage of corn in the original mixture?
Click here to see answer by josgarithmetic(39617)

Question 1097545: Kevin needs to produce 4000 milliliters of 44% alcohol solution. At his disposal he has 20% alcohol solution and 80% alcohol solution. How much of each does he need in order to produce his desired solution?
He needs ___ milliliters of 20% solution?
He needs ___ milliliters of 40% solution?

Click here to see answer by Alan3354(69443)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245