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Question 375345: How many liters of pure alcohol must be added of 5 liters of a 60% alcohol solution to make a 70% alcohol solution?
Click here to see answer by Fombitz(32388)

Question 375273: how many liters of a 20 percent solution must be mixed with 60 liters of a 90 percent solution to get a 70 percent solution
Click here to see answer by Fombitz(32388)

Question 375326: In the middle of a round pond floats a lovely pond-plant. The size of the pond-plant doubles every day. After exactly 10 days the complete pond will be covered by the plant. After how many days will half of the pond be covered by the pond-plant?
Click here to see answer by Alan3354(69443)

Question 375435: solution A is 40% acid and solution b is 65% acid.How much of each solution is needed to make 100 liters of a solution that is 55% acid?
Click here to see answer by Fombitz(32388)

Question 375606: Juniors boat will go 15miles per hour in still water.If he can go 12miles downstream in the same amount of time as it takes to go 9 miles upstream,what is the speed of the current?
Click here to see answer by mananth(16946)

Question 375649: bob sold some stock at $32 per share. This was $16 a share less than 8 times what he paid for it. What price did he pay for each share of the stock?
Click here to see answer by rfer(16322)

Question 375674: suppose that the width of a certain rectangle is .3 of its length and the area of that same rectangle is 4.8 square meters. Find the length of the rectangle.
Click here to see answer by robertb(5830)

Question 375680: the sum of the areas of two circles is 612pi square meters. Find the length of a radius of the smaller circle if one of them is 4 times as long as the other.
Click here to see answer by mananth(16946)

Question 375856: A seed company mixes two types of seed for bird feeding. One costs $1.100 per kg and the other costs $2.25 per kg. How much of each seed is needed to produce 6 kg at a cost of $8.90?
Click here to see answer by jessica43(140)

Question 375854: A candy mixture is created with 2 types of candy, one costing $4 per pound and the other $3.50 per pound. How much of each type is needed for a 5 pound box that coast $18?
Click here to see answer by jessica43(140)

Question 375857: A farmer wants to mix milk containing 6% butterfat with 2 quarts of cream that is 15% butterfat to obtain a mixture that is 12% butterfat. How much milk containing 6% butterfat must he use?
Click here to see answer by Fombitz(32388)

Question 376012: A vending machine contains nickels and dimes worth $14.50. There are 95 more nickels than dimes. How many nickels and how many dimes are there?
Click here to see answer by nerdybill(7384)

Question 376011: Solve by rearranging the equations first. Then use the multiplication principle and then use the elimination method:
3x=8y+11
x+6y-8=0

Click here to see answer by nerdybill(7384)

Question 376013: Jennifer is twice as old as Ramon. The sum of their ages 7 yrs ago was 13. How old are they now?
Click here to see answer by robertb(5830)

Question 376010: The perimeter of a standard high school basketball court is 268 ft. The length is 34 ft greater than the width. Find the length and the width of the court.
Click here to see answer by nerdybill(7384)

Question 376172: A chemist has a 60% solution and a 20% solution he mixes them together to make a 35% solution of 140 mL. how much of the 60% solution was used? how much of the 20% solution?
Click here to see answer by mananth(16946)

Question 376166: The perimeter of a rectangle is 120 feet. Use an equation to find the length and width of the rectangle if the length is twice the width.
Click here to see answer by Jk22(389)

Question 375859: A store owner has 12 pounds of pasta worth 70 cents a pound. She wants to mix it with pasta worth 45 cents a pound so that the total mixture can be sold for 55 cents a pound (without any gain or loss). How much of the 45 cent pasta must she use?
Click here to see answer by Fombitz(32388)

Question 376235: A doctor has a 2 liter solution of 3% boric acid. How much of a 10% solution of the acid must she add to have a 4% solution?
Click here to see answer by nyc_function(2741)

Question 376251: One pipe takes 30 minutes to fill a tank. After it has been running for 10 minutes, it is shut off. A second pipe is then opened and it finishes the tank in 15 minutes. How long would it take the second pipe alont to fill the tank?
Click here to see answer by nerdybill(7384)

Question 376316: Soybean meal is 12% protein, cornmeal is 6% protien. How many pounds of each should be mixed together in order to get a 240 lb mixture that is 10% protien?
Click here to see answer by robertb(5830)

Question 376359: a pharmacist wishes to prepare 30ml 0f a 20% alcohol solution. She has 30% solution and 10% percent solution in her stock. How much of each should she use in forming the desired mixture?
Click here to see answer by robertb(5830)

Question 376412: For extremely cold temperatures, an automobile manufacturer recommends that a 80% antifreeze and 20% water mix be used in the cooling system of a car. How many quarts of pure (100%) antifreeze and 50% antifreeze and 50% water mix should be combined to make 11 quarts of 80% antifreeze and 20% water mix?
Click here to see answer by ankor@dixie-net.com(22740)

Question 376523: Solution A is 30% alcohol and solution B is 60% alcohol.How much of each solution isneeded to make 100 liters of a solution that is 45% alcohol?
Click here to see answer by ewatrrr(24785)

Question 376654: Please help me with this: How much 12-karat (50%) gold must be mixed with pure gold to obtain 60 grams of 16-karat (66.6667%) gold? The mass of pure gold is not given.
Click here to see answer by mananth(16946)

Question 376643: Please help me with this problem: How much water should be added to one gallon of pure antifreeze to obtain a solution that is 60% antifreeze?
Thank you

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

Question 377242: How much water should be added to one liter of pure cranberry juice to make a mixture of 50% cranberry juice?
Click here to see answer by Alan3354(69443)

Question 377261: how many liters of 40% acid solution must be added to 12 liters of a 20% solution to obtain a 25% solution?
I have an idea of what am i suppose to do but the only thing i am having trouble is how to right the equation to solve the problem.
Click here to see answer by ankor@dixie-net.com(22740)

Question 377480: A big barrel contains 300 L of a 6% solution of lawn fertilizer. How much water should be added to obtain a 5% solution?
Click here to see answer by mananth(16946)

Question 377481: Lara, a pharmacist, has 60 mL of an 8% alcohol solution. How Much water should be evaporated so that the solution that remains is 10% alcohol?
Click here to see answer by mananth(16946)

Question 377544: Solution A is 30% alcohol and solution B is 60% alcohol.How much of each solution is needed to make 100 liters of a solution that is 45% alcohol?
Click here to see answer by Fombitz(32388)

Question 377832: A bag of peanuts is worth $0.28 less than the same size bag of cashews. Equal amounts of peanuts and cashews are used to make 45 bags of a mixture that sells for $1.25 per bag. How much is a bag of cashews worth? (Give your answer to the nearest cent.)
Click here to see answer by josmiceli(19441)

Question 378024: The sum of two numbers is 27 . One number is 2 times as large as the other. What are the numbers?
Click here to see answer by Alan3354(69443)

Question 378102: A reservation clerk worked 9 hours one day. She spent twice as much time entering new
reservations as she did verifying old ones and one and a half as much time calling to confirm
reservations as verifying old ones. How much time did she spend entering new reservations?
Click here to see answer by mananth(16946)

Question 378048: how much pure acid should be mixed with 4 gallons of a 60% acid solution in order to get an 80% acid solution? to get a 80% acid solution, you need how many gallons need of pure acid?

Click here to see answer by robertb(5830)

Question 378552: You have 45 mL of a 30% acid solution. You want to create a 45% acid solution. How much pure acid will you need to add to create the 45% acid solution?
Click here to see answer by scott8148(6628)

Question 378605: A 15% acid solution is mixed with a 70% acid solution to produce 120 liters of a solution that is 40% acid. How much of each solution was used to create the mixture?
Click here to see answer by scott8148(6628)

Question 378673: If I have four gallons of 50 degree farenheit water and I need to add one more gallon of water what does the temperature of the last gallon need to be if the whole mixture ends up at 70 degrees.
This is used to mix up home brewed beer where the ideal temperature is 70 to add the yeast. The last gallon actually has a sugar solution.
The entire specific gravity of the mix ends up at 1035 just in case that needs to be figured in.
My name is Gerard and I am not smarter than a fifth grader.
Click here to see answer by Alan3354(69443)

Question 378699: James is feeding his horse and he needs a mixture of 88% oats and 12% corn. He currently has 24 pounds of a mixture of 58% oats. How many pounds of oats should be added to the mixture?
Click here to see answer by robertb(5830)

Question 379495: How much water must be evaporated from 5 liters of a 30% salt solution to obtain a 50% salt solution?
Table and show work

Click here to see answer by richard1234(7193)

Question 379495: How much water must be evaporated from 5 liters of a 30% salt solution to obtain a 50% salt solution?
Table and show work

Click here to see answer by robertb(5830)

Question 379493: You have 4 gallons of juice that is 20% apple juice. How much apple juice do you have to add to get a mixture that is 30% apple juice?
Click here to see answer by ptaylor(2198)

Question 380046: A chemist has 25 liters of a 10% solution. How many liters of pure acid must be added to produce a 35% solution?

Click here to see answer by Fombitz(32388)

Question 380090: Determine the amount of a 25% acid solution and a 80% acid solution needed to make 250 mL of a 40% acid solution.
Click here to see answer by stanbon(75887)

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