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Question 1076358: Hi, I'm not sure where to even start I'm not very good at word problems. The topic is quadratic functions. If you can help me out it'd be very much appreciated! :)
30. Water Fountains A circular fountain sits in front of a city library. A pool of water (84) surrounds a sculpture that sits on a circular platform in the middle. The radius
of the sculpture is half the radius of the entire fountain. Write an equation to represent the area of the pool. Is the equation a quadratic function?

Click here to see answer by Boreal(15235)

Question 1076465: How much pure acid should be mixed with 2 gallons of aa 60% acid solution in order to get a 90% acid solution
Click here to see answer by josgarithmetic(39617)

Question 1076579: In an alloy of 150 pounds of zinc and copper, there are 100 pounds of copper. How much copper must be added so that the alloy may be 10% zinc?
Click here to see answer by Boreal(15235)

Question 1077037: How many gallons of a 10% salt solution must be mixed with 50 gallons of a 50% salt solution to obtain a 20% salt solution?
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Question 1077072: there is a 75 liters solution of milk and water in which milk from 80%.how much watermust be added to the solution so that milk forms 24%
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Question 1077169: Please help me solve
The cost and revenue functions of a company are given by the equations c(x)=30x+1000 and R(x)=70x-1000, respectively.
3. Draw a plot of race function indicating functions C and R on the same set of axis.
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Question 1077448: one bag of trail MIX HAS 5 OZ of raisins and some almonds .Lon buys 3 bags of trail mix and has 48 OZ of trail mix altogether. How many OZ of almonds are in each bag ?
Click here to see answer by josgarithmetic(39617)

Question 1077533: If 1,600 liters of 10% dextrose solution is made by combining a 20% dextrose solution with a 4% dextrose solution, how much of each solution must be used
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Question 1077758: Two samples are available. one is 24% protein and the other is 12% protein. how much of each sample should be used to get 900 pounds that is 16%?
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Question 1077859: About 250 years BC Archimedes could go through an experiment that the crown of King Heros was not pure gold without destroying it. Plant such an experiment.
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Question 1077858: A 0.7-liter glass bottle weighs 590 g, a 1-liter PET bottle weighs only 62 g. Determine how many bottles can be made of 10 kg of glass and 10 kg of plastic raw materials and how many liters of water can be transported with it.
Click here to see answer by jorel1380(3719)

Question 1078245: I am having trouble setting up the equations for the following problem:
a goldsmith was going to make some rings out of his 1000 grams of gold an alloy which would contain 45% gold. The goldsmith was going to use 2 different types of alloys and melt them together. One of the alloys was 25% AND THE OTHER 50% GOLD. How many grams of each type would the goldsmith have to use?
I have .25x+.50y=450 so far, but I need one more equation to solve using elimination. please help
Click here to see answer by josgarithmetic(39617)

Question 1078298: please help me with this problems:
1.- A 10% salt solution is to be mixed with a 20% salt solution to produce 30 gallons of a 12% salt solution. How many gallons of the 10% solution and how many gallons of the 20% solution will be needed?
2.- a hardware store sells two types of paintbrushes.Brand A is a priced at $4 each and Brand B is priced at $6.50 each. If the store sold a total 26 brushes and took in $129 how many brushes of each type were sold?
tank you so much
Pilar W
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Question 1078458: A tank holds 80 liters of chemical solution. Currently, the solution has a strength of 30% How much of this solution must be drained and replace with a 70% solution to get a strength of 40%
Click here to see answer by Boreal(15235)

Question 1078535: Find the cost per pound of a coffee mixture made from 12 lb of coffee that costs $7.50 per pound and 15 lb of coffee that costs $5.00 per pound.

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Question 1078560: How much water should be added to 6 liters of 30% acid solution to dilute it to a 12%soution
Click here to see answer by Alan3354(69443)

Question 1078560: How much water should be added to 6 liters of 30% acid solution to dilute it to a 12%soution
Click here to see answer by Boreal(15235)

Question 1078560: How much water should be added to 6 liters of 30% acid solution to dilute it to a 12%soution
Click here to see answer by natolino_2017(77)

Question 1078529: what mass is 5% of calcium chloride
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Question 1078601: What is 62 1/2 of what number is 35
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Question 1078599: The solution in the large container was 60% alcohol, and the solution in the small container as only 30% alcohol. How much of each should be used to get 300mL that is 42% alcohol?
Click here to see answer by josgarithmetic(39617)

Question 1078685: birdseed cost $0.69 a pound and sunflower costs $0.99 a pound, they want to make a 50 pound mixture of them that sells for $0.91 per pound. how many pounds of birdseed And sunflower seed should they use

Click here to see answer by josmiceli(19441)

Question 1078772: needs to prepare 28 ounces of a 9% hydrochloric acid solution. find the amount of 14% solution and the amount of 7% solution she should mix. how many ounces of the 14% acid solution should be in the mixture?

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Question 1078955: One canned juice drink is 25% orange juice; another is 5% orange juice. How man liters of each should be mixed together in order to get 20L that is 21% orange juice?
How many liters of the 25% orange juice should me in the mixture?
Click here to see answer by stanbon(75887)

Question 1078990: Linda wants to make a mixture of grain that has 15% protein for her horse. She has30kg of oats which has 17g of protein per 100g and she has 50kg of barley which has 12gor protein per 100g
How much of each does she need to make a 20kg mixture with 15% protein?
And
What is the largest amount of 15% protein mixture that she can make with the grains on hand and what will be left over?
Click here to see answer by josgarithmetic(39617)

Question 1079376: 4 gallons of a light purple paint that is 15% blue are combined with a dark purple paint that is 60% blue. How many gallons of a dark purple paint must be used to create a purple paint that is 30% blue?
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Question 1079657: Here is my question. The snow accumulation on a winter day starts at zero and increase by 1/2 inch per hour?
Click here to see answer by Boreal(15235)

Question 1079658: Here my question? A bus can 10 miles on each gallon of gas?
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Question 1079656: What is the perimeter of a square is four times the side length of the square?
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Question 1079656: What is the perimeter of a square is four times the side length of the square?
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Question 1079783: Finding the grams of sugar in 12 fl oz of lemonade. The mixture for 128 fl oz was 24 oz white sugar, 8 fl oz lemon juice and 120 fl oz water.
Click here to see answer by FrankM(1040)

Question 1079764: The Carters can purchase Season's Choice Blend for $1.88 per pound and Garden Mix Blend for $1.28 per pound. If they wish to purchase 20 pounds and spend $34 on birdseed, how many pounds of each type should they buy?
Click here to see answer by josgarithmetic(39617)

Question 1079866: How much of an 20% acid solution and how much of a 60% acid solution should bw mixed together to make 100 liters of a 35% acid solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1079963: The manager of a farmer's market has 350 lb of grain that costs $1.30 per pound. How many pounds of meal costing $0.80 per pound should be mixed with the 350 lb of grain to produce a mixture that costs $1.15 per pound?

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Question 1080096: How many liters of water must Sharon add to 5 liters of a soap and water mixture which is 36% soap to create a solution which is 12% soap?

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Question 1080213: A mixture worth 3.50 per pound is to be made by combining 20 pounds of peanuts work 3.00 per pound with raisins worth 5.00 per pound, How many raisins should be used?
Click here to see answer by josgarithmetic(39617)

Question 1080279: How many milliliters of a 10% acid solution must be added to 55 milliliters of a 80% acid solution to create a 50% acid solution?
Click here to see answer by rapture(86)

Question 1080460:
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Question 1080542: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
65%
salt and Solution B is
90%
salt. She wants to obtain
40
ounces of a mixture that is
75%
salt. How many ounces of each solution should she use?
Click here to see answer by ikleyn(52781)

Question 1080562: A chemist needs a 30% acid solution. How much pure acid needs to be mixed with 5 milliliter a of a 10% acid solution to obtain the desired solution?
Click here to see answer by Fombitz(32388)

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