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Question 696763: Milan needs 8 oz of a 20% alcohol solution for a chemistry lab. Unfortunately, his teacher only has a 1% alcohol solution and a 50% alcohol solution.
How many ounces of the 50% alcohol solution should be mixed with the 1% alcohol solution to make 8 oz of the 20% alcohol solution Milan needs? Round to the nearest tenth of an ounce.
Click here to see answer by josmiceli(19441)

Question 696825: the number of hours that were left in the day was one-third of the number of hours already passed. how many hours were left in the day ?

Click here to see answer by ankor@dixie-net.com(22740)

Question 696867: how many dimes would fit into a 1.5 liter bottle?
Click here to see answer by abhishek meena(6)

Question 696867: how many dimes would fit into a 1.5 liter bottle?
Click here to see answer by Alan3354(69443)

Question 697000: It cost $7.05 for a pound of almonds. How much will it cost for 4oz of almonds.
Click here to see answer by Stitch(470)

Question 697032: How many kg of water must be added to 50 kg of 80% acid to obtain a 60% acid?
Click here to see answer by stanbon(75887)

Question 697033: How many kg of water must be evaporated from 100 kg of a 6% salt solution to obtain a 20% salt solution?
Click here to see answer by stanbon(75887)

Question 697005: how many gallows of 40% antifreeze must be mixed wth 50 gallons of a 70% solution to get a mixture which is 50% antifreeze.
Click here to see answer by Alan3354(69443)

Question 697168: A chemist wants to make 700mL of a 6% acid solution by using 5% and 12% acid solutions. How much of each should she use?

Click here to see answer by josmiceli(19441)

Question 697332: A total of 66 animals are in the farm consisting of pigs and turkeys. If there is a total of 210 feet, how many pigs and turkeys are there?

Click here to see answer by Positive_EV(69)

Question 696327: A lottery consists of one $2000 winner, three $500 winners, and ten $100 winners. A total of 1000 tickets are sold for $10 each. Find the expected winnings for a person purchasing one ticket.

Click here to see answer by Positive_EV(69)

Question 697355: What single discount is equivalent to two successive discounts of 10% and 15%?

Click here to see answer by lynnlo(4176)

Question 697361: please help me solve this please :mrs sherwood puts sweets into a bag before the disco. if she put 14 sweets i each bag,how many bags will be needed to take 196 sweets ?
Click here to see answer by lynnlo(4176)

Question 697577: A grocer mixed nuts worth $4 per kg with raisins worth $3.25 per kg to make 15 kg of a mixture worth $3.60 per kg. How many kg of nuts and raisins were used?
Okay well so far I have that n (nuts) = $4/kg and r (raisins) = $3.25/kg
I just don't know how to get it to get to $3.60 a pound for 15 pounds with the mixture of both!! Help me someone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 697645: Forty liters of a 60% disinfection solution are to be mixed with a 10% solution to dilute it to a 20% solution. How much of the 10% solution must be used?
Click here to see answer by stanbon(75887)

Question 697685: How much pure rubbing alcohol must be added to 20kg of a 12% alcohol solution to give you a 32% ALCOHOL SOLUTION?
Click here to see answer by josmiceli(19441)

Question 697694: A nut shop sells almonds for $1.80 a pound, walnuts for $1.30, and peanuts for $.65 a pound. the shopkeeper makes a mixture of 21 pounds of these nuts to sell for $1.00 a pound. he used twice as many pounds of peanuts as walnuts. how much of each kind of nut did he use?
Click here to see answer by josmiceli(19441)

Question 697688: Pamela has a solution of 50% acid and another of 80% acid. How many ounces of each will make 300 ounces of a solution that is 72% acid?
Click here to see answer by Alan3354(69443)

Question 697691: An 18% iodine solution is mixed with with a 45% iodine solution to make 12 ounces of a 36% iodine solution. How many ounces of each were used?
Click here to see answer by Alan3354(69443)

Question 697704: how much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution?
Click here to see answer by Alan3354(69443)

Question 697704: how much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution?
Click here to see answer by Edwin McCravy(20056)

Question 697763: If you have 32 oz of ham @.89 cents a pound how much for one ounce
Click here to see answer by rfer(16322)

Question 697820: an 18% iodine solution is mixed with a 45% iodine solution to make 12 ounces of a 36% iodine solution. How many ounces of each were used?
Click here to see answer by lwsshak3(11628)

Question 698154: how many gallons of 80% acid solution must be mixed with 40 gallons of 13% solution to obtain a 70% acid
Click here to see answer by josmiceli(19441)

Question 698451: A chemistry teacher asks his students to make a 5% sodium solution. The students are given 9 liters of 15% sodium solution that they are to completely mix with water. How many liters of water must be mixed to get the 5% solution?
Click here to see answer by lwsshak3(11628)

Question 698482: I a on a diet and need some converting help. I used to know a way to do this algebraically.
If four ounces has 13 grams of protein, how much protein does one ounce have?
Can you tell me a way to set up the problem and what to do....I will need to do this with a lot of things. Thank you so much.
Shelley
Click here to see answer by MathLover1(20850)

Question 698489: You answered one question for me, and I have another just so I get the hang of how to set it up. if 8 oz of chili has 17 grams of protein how many protein in 1 oz?
Thank you
Shelley
Click here to see answer by stanbon(75887)

Question 698525: Please help me solve this word problem: How many liters of water must be added to 20 L of an 85% solution of ammonia to make a solution that is 70% ammonia?
Click here to see answer by lwsshak3(11628)

Question 698517: Please help me sole this mixture word problem: How much pure juice must be added to a 1 liter of juice that is 5% juice in order to obtain a drink that is 25% juice?
Thank you
Click here to see answer by lwsshak3(11628)

Question 698531: Please help me solve this word problem: How many kilograms of cashew nuts worth php 66 a kilogram must be mixed with 10 kilograms of pecans worth php 85 a kilogram to make a mixture worth 71 a kilogram
Click here to see answer by josmiceli(19441)

Question 698523: Please help me solve this word problem: How many liters of water must be added to 20 L of an 85% solution of ammonia that is 70% ammonia?
Click here to see answer by josmiceli(19441)

Question 698693: Please help me solve this problem: How many liters of pure alcohol must be added to 15 liters of a 20% solution to obtain a mixture which is 30% alcohol?
Click here to see answer by sofiyac(983)

Question 698772: I have 4 oz. of liquid which contains a 60 % hydrogen peroxide solution. How much water should I add to reduce the solution to a 3 % hydrogen peroxide solution?
Click here to see answer by Alan3354(69443)

Question 698331: I need to mix 15 ml of bleach per 50 gallons of water to sterilize pool equipment. I only have a 5 gallon bucket. So how many ml of bleach per 5 gallons of water will I use?
Click here to see answer by Simnepi(216)

Question 698856: The consumption of a vegetable has decreased. The consumption per capita in 2000 was 28.1 pounds, and in 2010, the consumption dropped to 11.7 pounds. Find the percent decrease. Round to the nearest tenth of a percent.
Click here to see answer by Simnepi(216)

Question 699001: how many liters of water must be added to 30L of a 30% acid solution in order to produce a 20% acid solution?
Click here to see answer by josmiceli(19441)

Question 699129: there is an available 75 liters of 55% solution of acid and water. what volume of water must be added to the solution to reduce the concentration to 18%?
Click here to see answer by stanbon(75887)

Question 699151:

You have mixed 100 g of 8% cream into 200 g of 3% cream. What is the resulting concentration?
Click here to see answer by checkley79(3341)

Question 699245: If coffee Cost seven dollars a pound How many pounds can I get for two dollars and 25 cent
Click here to see answer by solver91311(24713)

Question 699655:
how much of a 7% salt solution and a 1% salt solution is needed to make 1 liter of 3% salt solution?
Click here to see answer by checkley79(3341)

Question 700122: Please help me solve this word problem: How many pounds of green tea, worth $40 a pound, should be mixed with herbal tea, worth $50 a pound, to produce 60 pounds of a blend worth $42 a pound?
Click here to see answer by stanbon(75887)

Question 700121: I am in College algebra and working on "Solving systems of equations by the Addition Method". I have the answers in front of me but I don't know how to work the problem.
The Word problems is as follow's...
A chemist needs 90 milliliters of a 72% solution but has only 68% and 77% solutions available. Find how many milliliter of each that should be mixed to get the desired solution.
I have tried using X+Y=72% over 68%X+77%Y=90 and adding the two together to single out the x and y values,but this just brings up some wierd number that are way to high. The answer in the book is 50 ml of 68% and 40ml of 77%. I cant see how they get this answer. Please help
Click here to see answer by ankor@dixie-net.com(22740)

Question 700178: Unless otherwise indicated, a crude extract of Coleus forskohlii root preparation was used as a working source of forskolin (ATZ Natural, Edgewater, NJ)18. Purified forskolin was purchased from Sigma-Aldrich Chemical Corporation (St. Louis, MO). All topical agents were prepared as a weight:volume solution in a standard dermatologic vehicle of 70% ethanol, 30% propylene glycol (Sigma-Aldrich Chemical Corporation, St. Louis, MO). The C. forskohlii extract-derived topical preparation was made by mixing the dry root powder (extract) with vehicle for 1h at room temperature on a stir plate with constant agitation. Next, the solution was centrifuged (10 min, room temperature, 2,000 x g) and the soluble portion (supernatant) was collected and filtered (0.45 � cellulose acetate filter). The C. forskohlii extract was stored at room temperature. Assay of content by the manufacturer (as well as independent analysis) confirmed that forskolin accounted for 20% (w/w) of the root extract in powder form.'
Click here to see answer by solver91311(24713)

Question 700177: Unless otherwise indicated, a crude extract of Coleus forskohlii root preparation was used as a working source of forskolin (ATZ Natural, Edgewater, NJ)18. Purified forskolin was purchased from Sigma-Aldrich Chemical Corporation (St. Louis, MO). All topical agents were prepared as a weight:volume solution in a standard dermatologic vehicle of 70% ethanol, 30% propylene glycol (Sigma-Aldrich Chemical Corporation, St. Louis, MO). The C. forskohlii extract-derived topical preparation was made by mixing the dry root powder (extract) with vehicle for 1h at room temperature on a stir plate with constant agitation. Next, the solution was centrifuged (10 min, room temperature, 2,000 x g) and the soluble portion (supernatant) was collected and filtered (0.45 � cellulose acetate filter). The C. forskohlii extract was stored at room temperature. Assay of content by the manufacturer (as well as independent analysis) confirmed that forskolin accounted for 20% (w/w) of the root extract in powder form.'
Click here to see answer by solver91311(24713)

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