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Question 798597: Wilson has a bottle containing 35 millimeters of 15% saline solution and a bottle of 40% saline solution. She wants a 30% solution. How much of the 40% solution must be added to the 15% solution so that 30% concentration is created?
Click here to see answer by Finavon(81)

Question 798607: A bag of peanuts is worth $0.20 less than a bag of cashews. Equal amounts of peanuts and cashews are used to make 48 bags of a mixture that sells for $1.15 per bag. How much is a bag of cashews worth?
Click here to see answer by Finavon(81)

Question 798763: alcohol dissolved in water with a concentration of 78%. if the amount of dissolved alcohol is 0.84 liters, how much solution is in the bottle?
Click here to see answer by josgarithmetic(39617)

Question 798711: A hospital staff mixed a 75% disinfectant solution with a 25% disinfectant solution. How many liters of each were used to make 30 L of a 45% disinfectant solution?
Click here to see answer by josmiceli(19441)

Question 798774: alcohol dissolved in water with a concentration of 78%. if the amount of dissolved alcohol is 0.84 liters, how much solution is in the bottle? express answer to the nearest hundredth of a liter?
Click here to see answer by josmiceli(19441)

Question 798931: how many liters of a 40% solution must be mixed with 40 liters of a 90% solution to get a 50% solution
Click here to see answer by Finavon(81)

Question 798923: How much of a 15% solution and how much of a 50% solution should be mized together to make 60 gallons of a 30% solution?
Click here to see answer by richwmiller(17219)

Question 798983: Hello
I have worked this problem, but I don't think I am doing it right.
At the end of the day, a storekeeper had $1664 in the cash register, including both the sale of goods and the sales tax of 4%. What amount of sales tax had been collected?
I did
1664 X .04=66.56
I was told I got it wrong though. Thanks for your help in advance.
Click here to see answer by ankor@dixie-net.com(22740)

Question 799040: I think I answered my own question but just need to verify --- I bought 30 lbs of mints in bulk; if I bought them prepackaged, there would be about 7 oz per package. According to my calculation I would have 69+ packages for gifts for attendees at my family reunion. My early projections show I will have 60 adults and 10 children. Am I correct?
Click here to see answer by rfer(16322)

Question 799074: A company that supplies bulk candy to bakeries
has one batch of chocolate chips that are 50% dark chocolate and
50% milk chocolate. They have another batch that is 80% dark
chocolate and 20% milk chocolate. One of their customers sends
in a rush order for 100 lb of a mix that is 68% dark chocolate.
How many pounds from each batch should be mixed to meet this
order?
Click here to see answer by stanbon(75887)

Question 799144: Blair needs a 25% acid solution for an experiment in class, but unfortunately, he only has a 15% solution in the stockroom. How much pure acid must he add to 80 litres of a 15% acid solution to bring it up to a concentration of 25%?
Click here to see answer by josmiceli(19441)

Question 799226: how many cups of orange juice must be added to 50 cups of punch that is 10% orange juice to obtain a punch that is 20% orange juice?
Click here to see answer by josmiceli(19441)

Question 799290: What value of x makes the mean of the first three numbers in the list equal to the mean of the last four numbers?
15 5 x 7 9 17
Click here to see answer by ankor@dixie-net.com(22740)

Question 798998: My problem is "Suppose you wish to mix 10% acid solution with 24% acid solution to make 10 liters of 14% acid solution. How many liters of each solution should you use?"
So all I can think to do is .1x+.24x=.14(10) then solve for x but that gives me 4.11 and I can't mix two 4 liter solutions to make 10 liters obviously that makes no sense.
Click here to see answer by ankor@dixie-net.com(22740)

Question 799363: A coffee shop sold 35 cups of coffee. Of these, 15 contained sugar and 12 contained milk. If 13 cups contained neither milk nor sugar, how many cups must have contained both sugar and milk? = 5 how does this equation work step by step
Click here to see answer by solver91311(24713)

Question 799423: Many scientists believe that an asteroid slammed into earth 65 millions years ago on what is now Mexico's Yucatan peninsula, creating an enormous crater that is now deeply buried by sediment, used the labeled points on the outline of the circular creater to estimate its diameter( Each unit in the coordinate plane represents 1 mile)
Click here to see answer by solver91311(24713)

Question 799379: How many liters of water should be added to 18 liters of a 14% bleach solution so that the remaining solution contains only 10% bleach?
Click here to see answer by ankor@dixie-net.com(22740)

Question 799555: Harry has 50 milliliters of a 10% acid solution. How many milliliters of 45% acid solution should he add to create a 35% acid solution.
Click here to see answer by Alan3354(69443)

Question 799704: A lab technician has 40% alcohol solution and 60% alcohol solution. He need to make 100 ml. solution that is 48% alcohol. How much of each available solution should he use ?
Click here to see answer by mananth(16946)

Question 799792: how much water should be added to 30ml of 16% alcohol solution to reduce concentration to 15%

Click here to see answer by Alan3354(69443)

Question 799899: A goldsmith combined an alloy that costs $4.40 per ounce with an alloy that costs $1.90 per ounce. How many ounces of each were used to make a mixture of 200 oz costing $3.25 per ounce?
Click here to see answer by josgarithmetic(39617)

Question 799959: If 1 1/2lb. Of steak cost $32.50,how much would 1lb. Of steak?
Click here to see answer by rfer(16322)

Question 800160: the label the store brand mouthwash says that it is 22.3% alcohol by volume. the label on the popular store brand says that it is 12% alcohol by volume. if macy mixes 8 ounces of the store brand mouthwash with 5 ounces of the popular brand name mouthwash, what is the percent alcohol of the mixture?
Click here to see answer by stanbon(75887)

Question 800207: Write a mixture problem for the following equation: 1.00x + .28(40)=.40(x=40)

Click here to see answer by stanbon(75887)

Question 800257: How do I solve this question? Suppose 42 stamps are added to a stamp collection that has 30 stamps. What is the percent of
change? Round your answer to the nearest tenth, if necessary.

Click here to see answer by oscargut(2103)

Question 800381: How much of a 22 percent alcohol plus a 9 percent alcohol do you need to get 17.5 percent alcohol content in 560 ml. Need formulas and answer. Thanks
Click here to see answer by mananth(16946)

Question 800405: What quantity of 80 per cent acid solution must be mixed with a 20 per cent solution to produce 120 mL of a 50 per cent solution?
-Please explain the steps also, not just the answer. So I can understand it better :)
Click here to see answer by josmiceli(19441)

Question 800453: when a barrel of water is full, it contains 85, how much is remaining if 40% has been used
Click here to see answer by mathstutor494(120)

Question 800425: Katy needs to mix a 10% alcohol solution with 140 milliliters of a 60% alcohol solution to create a 45% solution. How many millileters of 10% alcohol solution must Katy use? And How much alcohol is in the 45% solution?
Click here to see answer by lwsshak3(11628)

Question 800429: Samantha needs to mix a 10% acid solution with 0 milliliters of a 60% acid solution to create a 10% solution.
How many millileters of 10% acid solution must Samantha use? And How much acid is in the 10% solution?
Click here to see answer by josgarithmetic(39617)

Question 800428: A candy distributor needs to mix a 30% fat-content chocolate with a 50% fat-content chocolate to create 100 kilograms of a 46% fat-content chocolate. How many kilograms of each kind of chocolate must they use?
Answer: They must mix
how Kilograms of the 30% chocolate and how
Kilograms of the 50% chocolate?
How much fat is in each kind of chocolate?
how many Kilograms of fat in the 30% chocolate?
how many Kilograms of fat in the 50% chocolate?
how many Kilograms of fat in the 46% chocolate?

Click here to see answer by josgarithmetic(39617)

Question 800424: A coffee distributor needs to mix 29 pounds of Queen City coffee that normally sells for $12.60 per pound with a(n) Gazebo coffee that normally sells for $13.70 per pound to create a coffee blend that can sell for $13.17 per pound. How many pounds of Gazebo coffee should they mix with the Queen City coffee to achieve the desired blend?
___ pounds of the Gazebo coffee to create
____ pounds of the $13.17 per pound blend.
-Round answers to the nearest whole number of pounds.
Click here to see answer by josgarithmetic(39617)

Question 800545: the mean of 10 observations was found to be 28. later, it was discovered that one observation 14 was misread as 24 find the correct mean

Click here to see answer by richwmiller(17219)

Question 800554: How many liters of a 20% alcohol solution be added to 40 liters of 50% solution to make a 30% solution?
Click here to see answer by lynnlo(4176)

Question 800637: How much of a 5% solution was there originally if, after 66 mgs of water evaporated, it turned into a 11% solution?
I can do mixture problems when you are adding but for some reason I get stuck up on these problems when you have to subtract (i.e. evaporating).
Click here to see answer by josmiceli(19441)

Question 800652: how many gallons of 15 percent saw solution must be mixed with 30 gallons of 25 percent solution to obtain 20 percent solution
Click here to see answer by mananth(16946)

Question 801158: An alloy of metals is 25% copper. Another alloy is 50% copper. How much of each should be used to make 1000 grams of an alloy that is 45% copper?
Click here to see answer by stanbon(75887)

Question 801308: how many ounces of a 15% alcohol solution must be mixed with 9 ounces of a 20% alcohol solution to make a 18% alcohol solution
Click here to see answer by mananth(16946)

Question 801424: A chemist has three different acid solutions. The first acid solution contains 25% acid, the second contains 45% and the third contains 85% . He wants to use all three solutions to obtain a mixture of 50 liters containing 65% acid, using 3 times as much of the 85% solution as the 45% solution. How many liters of each solution should be used?
Click here to see answer by htmentor(1343)

Question 801677: how many pounds of cherries can you buy for $22.10 if the cherries cost $3.25 per pound?
Click here to see answer by rfer(16322)

Question 801724: The Rocket Coaster has 20 cars, little cars hold 4 people and big cars hold 6 people. There is room for 12 people, how many big and little cars are there?
Click here to see answer by edjones(8007)

Question 801751: A pharmacist has two vitamin-supplement powders. The first powder is 10% vitamin B1 and 30% vitamin B2. The second is 15% vitamin B1 and 20% vitamin B2. How many milligrams of each powder should the pharmacist use to make a mixture that contains 70 mg of vitamin B1 and 180 mg of vitamin B2?
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