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Question 824208: Supply: 50mL of 15% and 85%
Order: 40%
what is the ml 85%
what is the ml 15%
Click here to see answer by stanbon(75887)

Question 824260: What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution? (1 point)

Select one:

a. 1.0 L
b. 2.3 L
c. 5.7 L
d. 6.3 L
Click here to see answer by josgarithmetic(39617)

Question 824291: i have one liter of pesticide 36% w/v, how many milliliters i need to take from the first one, to make a 30 liter of 0.5 %?
thank you for helping us...
Click here to see answer by josgarithmetic(39617)

Question 823041: Four hundred grams of an acid solution which is 10 percent pure acid should be diluted by water. How much water must you add to reduce the strength of the solution to 8 percent pure acid?
Click here to see answer by josgarithmetic(39617)

Question 822443: a 24% acid solution is mixed with a 14% acid solution to form a 19% acid solution. How many liters of the 14% acid solution are used to make 20 liters of the 19% acid solution?
Click here to see answer by josgarithmetic(39617)

Question 824400: A cleaning solution has 40% vinegar. Find the amount of vinegar in 32 ounces of the solution.
Click here to see answer by richwmiller(17219)

Question 824698: Find the maximum value for f(x,y)=x+y on the ellipse

Click here to see answer by josgarithmetic(39617)

Question 824913: a local specialty coffee shop wants to obtain 30 pounds of a mixture of coffee beans costing 4.40 per pound. they have a mixture costing 4.25 per pond and a mixture costing 4.50 per pound. how much of each should be used?
Click here to see answer by josgarithmetic(39617)

Question 825016: how many ml of 60 percent acid should be added to pure acid to make 50 ml of 85 percent acid
Click here to see answer by josgarithmetic(39617)

Question 824953: If 4% of a 25ml solution is sugar, how many grams of sugar is that?
Click here to see answer by josgarithmetic(39617)

Question 825035: How much is 12 percent of 8 cups and 6 percent of 8 cups thanks
Click here to see answer by rothauserc(4718)

Question 825107: A 30-lb mixture of dried mango and dried cherries costs $8.07 per pound. The mixture contains 18 lbs of dried mango that cost $5.99 per pound. What is the cost per pound of the dried cherries?
Click here to see answer by josgarithmetic(39617)

Question 825034: How much is 12 percent of 8 cups and what is 6 percent of 8 cups thanks
Click here to see answer by rfer(16322)

Question 823410: Bleach now come in a 8.5% concentration. I want to make 500ml of a 10% bleach solution using the 8.5% concentration. Need ot know the amount of bleach needed. Thank you!
Click here to see answer by josgarithmetic(39617)

Question 825162: How much acid need to add in 25gallon of water?

Click here to see answer by Alan3354(69443)

Question 825164: I have 30 gallons of water, I need to add antifreeze to get a 60% water and 40% antifreeze mixture. How much antifreeze do I need to add?
Click here to see answer by TimothyLamb(4379)

Question 825196: you want to make a 5 gallon mixture that contains 3 times more iced tea than lemonade by volume
Click here to see answer by Alan3354(69443)

Question 822389: Manuel's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Manuel per pound, and type B coffee costs per pound. This month, Manuel made pounds of the blend, for a total cost of . How many pounds of type A coffee did he use?
Click here to see answer by josgarithmetic(39617)

Question 817976: A grocer mixes x kg of Grade A and Y kg of Grade B nuts to get 60 kg of mixed nuts. Write and equation involving x and y to represent this information.
The grocer sells all the mixed nuts at 9.00 per kg. He receives the same amount of money as when he sells the Grade A nuts and the Grade B nuts separately at 10.00 per kg and 6.00 per kg respectively. Write and equation involving x and y to represent this information.
Click here to see answer by josgarithmetic(39617)

Question 825441: How much water should be added to 25 liters of a 14% salt solution to make a 5% salt solution?
Click here to see answer by TimothyLamb(4379)

Question 825450: A chemist wants to make 700 mL of a 6% nitric acid solution by using 5% and 12% nitric acid solutions. How much of each should she use.
I got 699.4 mL of the 5% solution, and .06 mL of the 12% solution. It just doesn't seem right and I'd like to check.
Click here to see answer by TimothyLamb(4379)

Question 825463: 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?
Please do not use system of equations.
Click here to see answer by TimothyLamb(4379)

Question 823038: How many liters of 40% acid solution must be mixed with 10 liters of a 65% acid solution to get a 45% acid solution?
Click here to see answer by josgarithmetic(39617)

Question 825499: A boy saves part of his allowance by placing in a piggy-bank 25 centavo coins and 50 centavo coins. If after two months he finds out that his total saving is 130 pesos and the number of fifty centavos is forty less than twice that of the twenty-five centavo coins, how many of each coin has he saved?
Click here to see answer by TimothyLamb(4379)

Question 825498: How much pure alcohol must be added to a mixture of 12 liters of alcohol and 30 liters of water to produce a 60% alcohol solution
Click here to see answer by TimothyLamb(4379)

Question 825498: How much pure alcohol must be added to a mixture of 12 liters of alcohol and 30 liters of water to produce a 60% alcohol solution
Click here to see answer by josgarithmetic(39617)

Question 825492: one solution is 80% acid and another one is 20 % acid . how much of each solution is needed to mak one hundred galons that is 65 %

Click here to see answer by TimothyLamb(4379)

Question 825492: one solution is 80% acid and another one is 20 % acid . how much of each solution is needed to mak one hundred galons that is 65 %

Click here to see answer by josgarithmetic(39617)

Question 825545: A physician advised the nurse to decrease the antibiotic solution for a newly born baby from 25% to 16%. How much distilled water must be added to 500 cc of 25% solution to get 16% solution?
Click here to see answer by josgarithmetic(39617)

Question 825690: a metallurgist needs to make 12.4 lb. of an alloy containing 50% gold. he is going to melt and combine one metal that is 60% gold with another metal that is 40% gold. how much of each should he use?
Click here to see answer by josgarithmetic(39617)

Question 825838: How many gallons of a 12% indicator solution must be mixed with a 20% indicator solution to get 10 gallons of a 14% solution?
Click here to see answer by josgarithmetic(39617)

Question 825836: A pharmacist has 20 liters of a 10% drug solution. How many liters of 5% solution must be added to get a mixture that is 8%?
Click here to see answer by josgarithmetic(39617)

Question 825833: How many gallons of milk that is 2% butterfat must be added with milk that is 3.5% butterfat to get 10 gallons of milk that is 3% butterfat?
Click here to see answer by josgarithmetic(39617)

Question 825839: A certain metal is 40% tin. How many kilograms of this metal must be mixed with 80 kilograms of a metal that is 70% tin to get a metal that is 50% tin?
Click here to see answer by stanbon(75887)

Question 825856: A 10% salt solution is to be mixed with pure water to produce 75 gallons of a 3% salt solution. How much of each are needed?
Click here to see answer by josgarithmetic(39617)

Question 825907: A candy store wishes to package a box of light and dark chocolates. The light chocolates cost $4 per pound and the dark chocolates cost $5per pound. If one pound of of light chocolates is used, how many pounds of dark chocolates are needed to produce a mixture worth$4.75 per pound?
Click here to see answer by josgarithmetic(39617)

Question 825911: A recipe calls for 2 ingredients and for no more than 15 grams of sugar or 16 grams of salt to be contained by the ingredients. One unit of ingredient A contains 1 gram of sugar, and 1 unit of ingredient B contains 3 grams of sugar. Also, 1 unit of ingredient A contains 4 grams of salt, and 1 unit of ingredient B contains 1 gram of salt. If the cost of 1 unit of ingredient A is $10.00 and the cost of 1 unit of ingredient B is $13.00, what is the maximum amount of money that could be spent on the 2 ingredients?
Click here to see answer by stanbon(75887)

Question 822991: One shopkeeper mixes 16 kg of salt for Rs. 2 per kg with 10 kg of salt for Rs. 4.80 per kg. He now sells the salt mixture for Rs. 4 per kg. In this process gain percentage is-
Click here to see answer by josgarithmetic(39617)

Question 822929: A nut merchant bought peanuts for $.75 per pound. She also bought 20 pounds of peanuts
from another farmer for $ 1.10 per pound. How many pounds of $.75 peanuts must be
combined with 20 pounds of $1.10 peanuts to make a mixture that will cost $.90 per
pound?

Click here to see answer by josgarithmetic(39617)

Question 826091: Kimberly took three hours to drive to her friends home on the weekend. Her average speed was 85 km/h for the first two hours. What was her average speed for the last hour of the trip if her average speed was 75 km/h for the whole trip?
Click here to see answer by ankor@dixie-net.com(22740)

Question 826170: A man buys milk at 60 P per liter, adds 1/3rd of water to it and sells the mixture at 72 P per liter. The profit percentage is.......?
Click here to see answer by josgarithmetic(39617)

Question 826176: a chemist needs 13 liters of a 10% acid solution should be mixed with a 31% solution to get that ( round your answer to the nearest liter)?
Click here to see answer by josgarithmetic(39617)

Question 826092: Eric has $6.45 in coins in his cash box. The number of quarters is one less than twice the number of dimes. The number of nickels is one less than twice the number of quarters. The value of the pennies is the same as the value of the nickels. How many of each type of coin does he have?
Click here to see answer by MathTherapy(10552)

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