Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 808184: A doctor wants to use three lots of ichthammol containing 50%, 20% and 5% ichthammol respectively. In what proportion should they be mixed to prepare a 10% ichthammol ointment?
Who helps me
Click here to see answer by richwmiller(17219)

Question 808190: Doreen Schmidt is a chemist. She needs to prepare 28 ounces of a 12% hydrochloric acid solution. Find the amount of 14% and the amount of 7% solution she should mix to get this solution.
Click here to see answer by richwmiller(17219)

Question 808192: Allie uses a metal alloy that is 21.1% copper to make jewelery. How many ounces of 20% bronze must be mixed with 26% copper to form 10 ounces of the metal?
Click here to see answer by richwmiller(17219)

Question 808284: A chemist has one solution that is 20% alcohol and another that is 60% alcohol. How much of each should the chemist use to get 100 mL of a solution that it 52% alcohol?
Click here to see answer by Alan3354(69443)

Question 808302: You need to use 3 solutions of drug H containing respectively 50%, 20% & 5% to make 600ml of 10% drug H. How much of the 50% will you use?
My own calculation 50% = 55ml
20% = 109ml
5% = 437ml
who helps me to solve it for me step by step
Click here to see answer by Alan3354(69443)

Question 808307: How much 30% alcohol, 45% alcohol, 60% alcohol and 95% alcohol could be mixed to make 200ml of 50% alcohol.
Who solve it for me
Click here to see answer by stanbon(75887)

Question 808325: you need to use 3 calculations of drug H containing respectively 50%, 20% and 5% to make 600ml of 10% drug H. how much of the 50% will you use?
How much 30% alcohol, 45% alcohol. 60% alcohol and 95% alcohol could be mixed to make 200ml of 50% alcohol
These 2 questions how to solve for me
Click here to see answer by Alan3354(69443)

Question 808453: You need to use 3 solutions of drug H containing respectively 50%, 20% and 5% to make 600ml of 10% drug H. How much of the 50% will you use.
I still do not understand this question about explanation. I really want to explain clearly step by step for me.
The right answer 50ml 50%

Please helps for me
Click here to see answer by josgarithmetic(39616)

Question 808442: Old chevy uses premium gas. accidently topped off with 5 gallos of regular gas. Tank holds 16 galls. Car gets 17 miles pergallon. How many miles will I have to drive care so that when I fill up the gantke with premium, the mixzture is 95% or greater?
I figured out percentages of regular to premium in 16 gal tank 32% and 69%. I can figure out the miles per gal. by dividing by 17 Mile/gal once I know how many gallons I need. Problem is when I mizx 100% premium with 69% premium. I don't know how to set it up.
Click here to see answer by josgarithmetic(39616)

Question 808560: How many quarts of pure acid must be added to 5 quarts of a 30% acid solution to produce a 50% acid solution ?
Click here to see answer by josgarithmetic(39616)

Question 808557: Um.... hello ^_^ I was absent by the day this was taught.....and no one can help me T_T.... will you??? :)
How many quarts of pure acid must be added to 5 quarts of a 30% acid solution to produce a 50% acid solution ?

Click here to see answer by mananth(16946)

Question 808880: A student has an 80% acid solution and a 50% acid solution. How much of each solution must be mixed to get 100 liters of a 75% acid solution?
Click here to see answer by Alan3354(69443)

Question 808975: a distributor has two gasohol blends: one that contains 6% alcohol and another with 13% alcohol. How many litres if each must be mixed to make 600 litres of gasohol containing 10.5% alcohol
Click here to see answer by richwmiller(17219)

Question 808304: To make a cake tom needs 1.5 kg. of sugar.How many bags does he need if one bag weighs 500grams
Click here to see answer by tommyt3rd(5050)

Question 809055: A pound of tin is worth $1 more than a pound of copper. Two pounds of tin are mixed with 8 pounds of copper to make bronze that sells for $4.45 per pound. How much is a pound of tin worth?
Click here to see answer by stanbon(75887)

Question 809004: 1. How many gallons of a 10% antifreeze solution and a 20% antifreeze solution must be combined to make 12 gallons of a 15% solution?

Click here to see answer by richwmiller(17219)

Question 809155: a chemist has a bottle containing 0.25 M CuCl2. How many milliliters of this solution should the chemist use to add 12.0 g of cucl2 to her reactions.
I don't know how to work out the problem.
Click here to see answer by josgarithmetic(39616)

Question 809148: hey my question on my assignment is YOU START WITH A SOLUTION CONTAINING 50% SALT TO A SOLUTION CONTAINING 90% SALT. YOUR ENDING SOLUTION IS 95% SALT. TRUE OR FALSE, EXPLAIM WHY...i cant explain why...
Click here to see answer by josgarithmetic(39616)

Question 809219: Amy mixes 12 liters of 16% solution with a 40% acid solution to make a 32% acid solution . How many liters of 40% solution did she use?
Click here to see answer by richwmiller(17219)

Question 809240: Mari mixes 16 liters of 18% solution with 27% acid solution to make 21% acid solution. Let x represent the number of liters of 27% solution used. Which equation can be used to find the number of liters of 27% acid solution in the mixture solution?
A) 2.88+.21x=.27(x+16)
B) 2.88+.27x=.21(x+16)
C) 4.32+.21x=.27(x+16)
D) 3.36+.27x=.18(x+16)
Click here to see answer by josgarithmetic(39616)

Question 809452: Sanjay is now � as old as his brother. In 6 more years he will be 3/5 as old as his brother then what the present age of each boy.
Click here to see answer by TimothyLamb(4379)

Question 809580: Jack wants to make 30 quarts of a 15% solution of weed killer for his lawn. He has some 12% solution and some 20% solution. How much of each does he need?
Click here to see answer by Alan3354(69443)

Question 809605: I use 2.4% of a 15lb cylinder how many pounds did I use?
Click here to see answer by richwmiller(17219)

Question 809575: I want to mix 5 oz of a 6% solution of red coloring with a 15% solution of red coloring to get a mix of 8% red coloring. How much of the 15% solution do I need?
Click here to see answer by josgarithmetic(39616)

Question 809730: A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.
How much of the 70% solution is used?
and
Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return trip, it takes 5 hours.
If x = the rate of the boat in still water and y = the rate of the current, which of the following systems could be used to solve the problem?
a.) 6(x - y) = 120 and 5(x + y) = 120
b.) 6(x + y) = 120 and 5(x - y) = 120
c.) 6x - 5y = 120 and x + y = 120
Click here to see answer by josmiceli(19441)

Question 809720: Would you please help us solve this problem. My daughter has quite a few of these for homework tonight and is struggling with most of them. Is there a particular pattern that she can look for in word problems to help solve?This is for Algebra 1. She currently has an 85 in the class, but this chapter is throwing her. Thank you so much for your help.
A coffee merchant has two grades of coffee, Grade A sells for $9 per pound, and Grade B $6 per pound. How many pounds of Grade A coffee must he mix with 20 pounds of Grade B coffee to obtain a new blend that can be sold for $7 per pound?
Click here to see answer by josmiceli(19441)

Question 809804: Mary drove to work at 40mph and got to work 1 minute late next day she went at 45 mph and got There 1 minute early how far does she live
Click here to see answer by josmiceli(19441)

Question 809726: A store mixes Kentucky bluegrass worth $11 per pound and che wings fescue worth$14 per pound. The mixture is to sell for $13 per pound. Find how much of each should be used to make a 420- pound mixture.
How many pounds of the Kentucky bluegrass should be in the mixture?
How many points of the che wings fescue should be in the mixture?
Click here to see answer by richwmiller(17219)

Question 809872: a solution contains 17.0% calcium hydroxide and 11% sodium hydroxide. How much calcium hydroxide and sodium hydroxide must be added to 250 kg of this mixture to produce a new mixture of 19% calcium hydroxide and 19% sodium hydroxide
Click here to see answer by josmiceli(19441)

Question 809869: Marie mixes 16 liters of 18% acid solution with a 27% acid solution to make a 21% acid solution.
How many liters of 27% solution did she use?
Click here to see answer by richwmiller(17219)

Question 809981: I mix one 12 fluid ounce can of concentrated juice with 4 1/3 cans of cold water. If I have a 1 gallon pitcher, how many more fluid ounces of concentrated juice is needed to fill the pitcher?
Click here to see answer by Edwin McCravy(20054)

Question 809689: How many cubic centimeters of a 20% saline solution should be added to 20 cubic centimeters of a 60% saline solution to create a 30% saline solution? If necessary, round to the nearest tenth.
Click here to see answer by ankor@dixie-net.com(22740)

Question 810010: we have 1000 ml 30% of NaCl. we must prepare 45% of solution. How many grams of water we needed?
Click here to see answer by Alan3354(69443)

Question 810054: How to do this problem solve : how many bottles of medicine each with a volume of 50ml can be filled from 5 liter of medicine if 100ml is spilt in the process

Click here to see answer by richwmiller(17219)

Question 810032: A trucking company wants to purchase a maximum of ten new trucks to provide at least 40 tons additional hauling capacity. Model A holds 4 tons and coasts $14,000. Model B holds 10 tons and costs $24,000. If the company wants to keep the cost of trucks to a maximum of $168,000, how many of each model should be purchased?
Click here to see answer by richwmiller(17219)

Question 809928: What quantity of 40% acid solution must be mixed with 120 mL of 90% acid solution to produce 70% acid solution?
Click here to see answer by richwmiller(17219)

Question 809805: How much pure alcohol must be added to 2 liters of a 30% solution to get a 50% alcohol solution
Click here to see answer by richwmiller(17219)

Question 809704: 25 oz @ 65%
How many oz to 40%
Please show me how you figured this!! Thanks
Click here to see answer by richwmiller(17219)

Question 810099: According to new hospital standards a certain disinfectant solution needs to be 20% alcohol instead of 10% alcohol. There is a 40% alcohol disinfectant available to adjust the mixture. Determine the amount of 10% solution and the amount of 40% solution to produce 30L of a 20% solution.
I am not sure on where to start and my teacher has not gone over any similar problems so I am really stuck. Please help me!?
Click here to see answer by josmiceli(19441)

Question 810272: if a chemist wishes to male 3 liters of a 7% acid solution by mixing a 9% acid and a 4% acid solution . How many liters of each solution should the chemist use ?define variables write the equation that models the problem solve equation state the answer solution
Click here to see answer by Alan3354(69443)

Question 810429: 5 mls per 5 pounds. How many mls if 30 pounds?
Click here to see answer by oscargut(2103)

Question 810499: Please help me solve this word problem for chemistry
How much water must you add to 100 mL of orange juice concentrate if you want your final juice to be 20%? (Hint : This is a dilution formula. There will be two steps.)
Click here to see answer by josmiceli(19441)

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