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Question 971516: Peter has 100ml of 40% citric acid on hand. The photo developer requires 500ml of 2% citric acid solution. How would he make it?
Click here to see answer by Boreal(15235)

Question 971516: Peter has 100ml of 40% citric acid on hand. The photo developer requires 500ml of 2% citric acid solution. How would he make it?
Click here to see answer by josgarithmetic(39617)

Question 971719: If i have a solution that is 40% concentrate and 1 oz of that solution, I take that and mix it with 8 oz of a different solution what does the concentrate become in the end of the original 40% concentrate solution?
Click here to see answer by anand429(138)

Question 971741: 40% of what is a 9?
Click here to see answer by MathLover1(20849)

Question 971787: A chemist wishes to create 12L of 30% acid by mixing water with a solution that is 80% acid. How much of each should be mixed together?
Click here to see answer by josgarithmetic(39617)

Question 971888: A coffee merchant combines coffee that costs $5 per pound with coffee that costs $3.40 per pound. How many pounds of each should be used to make 24 lb of a blend costing $4.50 per pound?
Click here to see answer by josgarithmetic(39617)

Question 971898: if I had 100l water and added 100l hcl 34% what would the concentracion be
Click here to see answer by josgarithmetic(39617)

Question 971937: An empty 1 gallon plastic container weighs 4.95 dry ounces. There are 34.7 dry ounces of of curry powder seasoning in a similar container, making it 1/3 full. How much would (only) the curry powder weigh, in dry ounces if the container was 100% full?
Click here to see answer by josgarithmetic(39617)

Question 971955: A metal worker has a metal alloy that is 30% copper and another alloy that is 80% copper. How many kilograms of each alloy should the metalworker combine to creat 60 kilograms of a 51% copper alloy?
Click here to see answer by lwsshak3(11628)

Question 972174: A chemist mixes 20% HCl with 40% HCl to make 15 liters of solution that is 25% HCl. How many liters of each does he need?

Click here to see answer by Alan3354(69443)

Question 972328: How many ounces of pure oil should be mixed with an oil-gas solution that is 3% oil to get 64 ounces of an oil-gas mixture that is 6% oil? Round off to the nearest hundredth of an ounce.
Click here to see answer by stanbon(75887)

Question 972427: Volume=972pi
Whats the radius of the sphere
Click here to see answer by macston(5194)

Question 972552: 6b4plus12b3minus18b2
Click here to see answer by stanbon(75887)

Question 972552: 6b4plus12b3minus18b2
Click here to see answer by Boreal(15235)

Question 972605: The ratio of the numerator to the denominator of a certain fraction is three to five. If two is added to the numerator and five is subtracted from the denominator, the new fraction reduces to four-fifths. Find the original fraction.
Click here to see answer by Alan3354(69443)

Question 972603: The ratio of the numerator to the denominator of a certain fraction is one to four. If three is added to the numerator and subtracted from the denominator, the new fraction reduces to one-third. Find the original fraction.
Click here to see answer by Alan3354(69443)

Question 972604: A mixture contains forty ounces of glycol and water and is ten per cent glycol. If the mixture is to be strengthened to twenty-five per cent, how much glycol is to be added?
Click here to see answer by josmiceli(19441)

Question 972608: The numerator and the denominator of a certain fraction are consecutive odd numbers. If nine is subtracted from the numerator, then the ratio of the numerator to the denominator of the new fraction is two to three. Find the original fraction.
Click here to see answer by ankor@dixie-net.com(22740)

Question 972665: What times what is negative 45 but at the same time adds to 12?

Click here to see answer by Alan3354(69443)

Question 972683: How many liters of a 6% solution of salt should be added to a 23% solution in order to obtain 833 liters of a 14% solution

Click here to see answer by Boreal(15235)

Question 972698: The capacity of a car radiator is 18 quarts. If it is currently filled with a 20% antifreeze solution, how many quarts must be drained and replaced with a 100% antifreeze solution to give 18 quarts of a 39% antifreeze solution?

Click here to see answer by josmiceli(19441)

Question 972702: how many square concrete paving slabs, each side 3/4 metres, are required to pave a rectangular yard measuring 9 metres by 6 metres?
Click here to see answer by rfer(16322)

Question 972650: A chemist has two solutions of
HCl.
One has a 40% concentration and the other has a 25% concentration.
How many liters of each solution must be mixed to obtain
57
liters of a
36%
solution?
Click here to see answer by josgarithmetic(39617)

Question 972640: there are two different copper alloys of total weight 50 kilograms. the first contains 40%less copper than the second one. determine the percentage of copper in first alloy . if it is known that there were 6 kg copper in first alloy and 12 kilograms in second alloy. what is the percentage of copper in second alloy?
Click here to see answer by ankor@dixie-net.com(22740)

Question 972803: A person drives to a destination at a rate of thirty mph and returns over the same route at fifty mph. How far is the destination if the time returning is one hour less than the time going?
Click here to see answer by Alan3354(69443)

Question 972805: The difference of two numbers is seventy-two. If the larger number is divided by the smaller number, then the quotient is seven and the remainder is six. Find the numbers.
Click here to see answer by solver91311(24713)

Question 972801: One person can do a certain job in one-half hour, and another person can do the same job in one hour and ten minutes. How many minutes will they take to do the job together?
Click here to see answer by nerdybill(7384)

Question 972802: Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third.
Click here to see answer by macston(5194)

Question 972804: The present ages of a husband and wife are in the ratio of seven to six, and five years ago the ratio was six to five. Find their ages now.
Click here to see answer by ankor@dixie-net.com(22740)

Question 972904: how much 50% antifreeze solution and 30% antifreeze solution should be combined to give 85 gallons of 38% antifreeze solution
Click here to see answer by josgarithmetic(39617)

Question 972607: A mixture contains one-hundred ounces of glycol and water and is twenty-eight per cent glycol. If the mixture is to be weakened to twenty per cent, how much water must be added?
Click here to see answer by lwsshak3(11628)

Question 972969: how many liters of a 48% solution should be added to 40 liters of a 35% solution if the final mixture is to contain a 40% solution?
Click here to see answer by Boreal(15235)

Question 972639: there are two different copper alloys of total weight 50 kilograms. the first contains 40%less copper than the second one. determine the percentage of copper in first alloy . if it is known that there were 6 kg copper in first alloy and 12 kilograms in second alloy. what is the percentage of copper in second alloy?
Click here to see answer by josgarithmetic(39617)

Question 973717: Given 250 mL of Hydrochloric Acid (HCl) at 65% concentration, how many mL of pure HCL are in the mixture?
Click here to see answer by Boreal(15235)

Question 973730: A pot contains salt water mixture. The mixture is 72 gram out of which 18 gram is taken out and 18 gram fresh water is put in its place. Again 18 gram mixture is taken out and 18 gram fresh water is put into it. If in the last mixture the salt is 5%, find out the weight of salt in the initial mixture.
Click here to see answer by josgarithmetic(39617)

Question 973749: pure acid is to be added to a 10%acid solution to obtain 90l of 22% solution .
what amounts of each should be used?
Click here to see answer by josmiceli(19441)

Question 973899: For her birthday party Danielle mixed
together 3 gal. of Brand A fruit punch and 7
gal. of apple juice. If Brand A contains 20%
fruit juice, then what percent of the final
mixture is fruit juice?
Click here to see answer by stanbon(75887)

Question 973905: how many ounces of 20% hydrochloric acid solution and 50% hydrochloric acid solution must be mixed together to get 12 ounces of 30% hydrochloric acid solution
Click here to see answer by Boreal(15235)

Question 973911: If I have 30 liters of a 10% solution, how many liters of a 2% solution do I add to get an 8% soolution?
Click here to see answer by amarjeeth123(569)

Question 973977: Bunson Burner has 3 liters of a 10% acid solution. How much pure acid must be added to produce a 50% acid solution?
Click here to see answer by stanbon(75887)

Question 974028: A pharmacist has an 18% bleach solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?
Click here to see answer by lwsshak3(11628)

Question 974178: A grocer has 200 grams of a coffee blend that is one-fourth regular and three-fourths decaffeinated. She wants the mixture to be 75% regular. How many grams of regular should be added?
Click here to see answer by josgarithmetic(39617)

Question 974226: Word problem into a rational equation, 18 lbs of fruit purchased, there where $9 worth of apples and $2.40 of bananas, price per lb of apples is three times more than price per lb of bananas. How many lbs of apples and how many lbs of bananas where purchased? How do I solve?
My email is cyclo29@yahoo.com thank you!
Click here to see answer by Edwin McCravy(20055)

Question 974344: I need to add 3.5 ounces of 12 percent hydrogen peroxide to my hot tub. I only have 3 percent hydrogen peroxide. How many ounces of this do I need to add?
Click here to see answer by josgarithmetic(39617)

Question 974583: how many ML of 20% acid solution should be mixed with 50% ml of an 8% solution to obtain an 18% acid solution?
Click here to see answer by josgarithmetic(39617)

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