Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 652757: I need to write and equation and then solve it. Please help! ..... 20 is what percent of 8?
Click here to see answer by rfer(16322)

Question 652757: I need to write and equation and then solve it. Please help! ..... 20 is what percent of 8?
Click here to see answer by MathLover1(20850)

Question 652806: Select ALL calculations that are measured in square units.
The amount of soil needed to fill a flower pot

The amount of viewing space of a TV screen

The amount of curtains needed to cover a window

The amount of chalk needed to outline a rectangular field

The amount of fabric needed to cover a dining room table

The amount of trim needed to surround a picture frame

Click here to see answer by stanbon(75887)

Question 652949: 21 out of 35 students failed a true / false test. What percent of the students passed

Click here to see answer by lynnlo(4176)

Question 653142: how many ounces of pure nickel must be added to 150 ounces of an allot which is 85% pure
Click here to see answer by josmiceli(19441)

Question 653234: a 3% salt solution is mixed with a 9% salt solution. how many grams of the 9% salt solution were used to make 150 g of a 4% salt solution?
_________________________________________________________________________________
I don't know where to start in order to solve this. There will be 2 questions like this on my test on Thursday and I have a lot of trouble figuring out how to solve these. Do you have any tips or tricks for how to get equations out of word problems? It is very confusing for me, and my teacher isn't very good at explaining anything. :/ Thank you very much!
Click here to see answer by ankor@dixie-net.com(22740)

Question 653313: How many pounds of cashews worth 5.00 per pound and how many pounds of peanuts worth 2.00 per pound would you mix to get an 18 pound mixture worth 3.00 per pound?
Click here to see answer by Shana-D77(132)

Question 653610: Trevon wants to make a 40% acid solution. He has already poured 6 fl. oz. of a 20% acid solution into a beaker. How many fl. oz. of a 80% acid solution must he add to this to create the desired mixture?
Click here to see answer by josmiceli(19441)

Question 653649: This is the problem: How many ounces of 50% antifreeze solution must be mixed with 10oz of an 80% antifreeze solution to produce a 60% antifreeze solution.
I'm supposed to make an equation for it and solve and I have no idea how to do so.
Click here to see answer by josmiceli(19441)

Question 653926: A chemist needs 160 milliliters of a 36% solution but has only 24% and 72% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A) 40 ml of 24%; 120 ml of 72%
B) 123 ml of 24%; 40 ml of 72%
C) 120 ml of 24%; 40 ml of 72%
D) 123 ml of 24%; 37 ml of 72%
Click here to see answer by ankor@dixie-net.com(22740)

Question 654262: 65% of what number is 13 ?
Click here to see answer by lynnlo(4176)

Question 654333: how much of an alloy that is 30% copper should be mixed with 100 ounces of an alloy that is 80% copper in order to get an alloy that is 40% copper?
Click here to see answer by lwsshak3(11628)

Question 654462: The suggested list price of a new car is $12000. The dealer's cost is 85% of list. How much will you pay if teh daeler is willing to accept $100 over cost for the car?

Click here to see answer by lynnlo(4176)

Question 654466: An open box is to be constructed from a square piece of sheet metal by removing a square of side 1 foot from each corner and turning up the edges. If the box is to hold 4 cubic feet, what should be the diamensions of the sheet metal?
Click here to see answer by solver91311(24713)

Question 654461: I need help solving these problems before this Sunday, Sep. 23, 2012
1. Prepare 30 grams of a 25% (weight/weight) solution of NaCl.
2. Prepare 200mL of a 0.8 mole solution of CaCl.
3. Prepare 450mL of a 35% stock solution using a 70% stock solution and a 20% stock solution.
4. Prepare 500mL of 2.00 Mole buffer solution for an experiment. Use 2.50 liter bottle containing 5.6 Mole buffer solution.
5. What volume of a 40% acidic solution contains 4.2 grams of acid?
Click here to see answer by solver91311(24713)

Question 654384: how many gallons of 40% cream must be added to 10 gallons of 4.5% milk to make it into a mixture containing 18% fat?
Click here to see answer by ankor@dixie-net.com(22740)

Question 654619: 2 1/2 lbs of sugar sell for $1.50. how much would it cost for 6lbs?
Click here to see answer by josmiceli(19441)

Question 654637: I don't understand how to do this problem, "A landscaping company needs 160 gallons of 30% fertilizer to fertilize the shrubs in an office park. They have in stock 45% fertilizer and 25% fertilizer. How much of each type should they mix together?
Click here to see answer by solver91311(24713)

Question 654648: i have several questions
1. write 3.6875 as a completely reduced mixed number.
2. how many choices are possible for a single serving of frozen yogurt with one topping if the ice cream shop at the mall sells 3 different flavors of frozen yogurt and 5 different toppings?
3. what is the prime factorization of 1188
4. find the least common multiple of 48, 60,75
5. 30 is 40% of what number?
6. find the volume of a cone with radius 7 meters and height 13 meters.
7. find the interest earned on $400 invested at 7.5% for 2 years.
8. if 90 is increased to 144 what is the percentage increase
Click here to see answer by solver91311(24713)

Question 654917: how many liters of a 80% acid solution must be mixed with a 30% acid solution to get 300 liters of a 70% acid solution?
Click here to see answer by checkley79(3341)

Question 655045: A 12% salt solution is mixed with 48 grams of a 20% salt solution to obtain and 15% salt solution. Find the number of grams of the 12% salt solution. Write the equation that would be necessary to solve this problem. You do not need to solve.
Click here to see answer by stanbon(75887)

Question 655047: A nut store sells cashews for $9 per pound and almonds for $3.50 per pound. At the end of the month, the almonds hadn't sold so well. So the owner decided to mix the almonds with 60 pounds of cashews. The owner wants to sell the mixture for $7.50 per pound. How many pounds of almonds are necessary to obtain the desired mixture that will sell for $7.50 per pound? Write an equation and solve.
Click here to see answer by stanbon(75887)

Question 655069: How many gallons of maple syrup at $5 a gallon and how many gallons of corn syrup at 70 cents a gallon must be mixed to make 100 gallons to sell at $1.99 a gallon?
Click here to see answer by lwsshak3(11628)

Question 655130: How many litres of a 90% acid solution must be mixed with a 25% acid solution to get 250 Litres of a 80% acid solution?
Click here to see answer by checkley79(3341)

Question 655236: Can you please explain an equation for the mixture problems? I'm confused. Thanks
Click here to see answer by Edwin McCravy(20056)

Question 655683: how many liters of a 10% alcohol solution must be mixed with 50 L of a 90% solution to get a 50% solution?
Click here to see answer by Alan3354(69443)

Question 655877: From a full 50 liter container of 40% concentration of acid, x liters is removed and replaced with 100% acid. Determine x if the final mixture is 50% acid.
Click here to see answer by stanbon(75887)

Question 656682: How many gallons of 15% alcohol solution and 60% alcohol solution must be mixed to get 9 gallons of 30% alcohol solution?
Click here to see answer by ewatrrr(24785)

Question 656733: Chocolate Drops sell for 3 for 10 cents. How much will 1 1/2 dozen cost?
Click here to see answer by ewatrrr(24785)

Question 656760: Select ALL calculations that are measured in square units.
Answer The amount of sod needed to cover a dirt yard
The amount of base boards (molding) needed for a room
The amount of carpet needed to cover a floor
The amount of paint needed to cover a wall
The amount of fencing needed to surround a garden
The amount of water needed to fill a bucket
.

Click here to see answer by ewatrrr(24785)

Question 657226: how many quarts of pure antifreeze must be added to 2 quarts of a 30% antifreeze solution to obtaine a 60% antifreeze solution
Click here to see answer by josmiceli(19441)

Question 657343: Juice-O-Rama is a refreshment stand specializing in a fruit drink mixture of orange juice and prune juice. The orange juice costs $1.20 per liter and the prune juice costs $1.40 per liter. If they need 8 liters of the final drink at a cost of $1.24 per liter, how many liters of each juice will they need to make their specialty drink?

I don't really know how to start, but I put x as the liters of orange juice and y as the liters of prune juice. I set x+y=8, but this is where I get confused
Click here to see answer by kevwill(135)

Question 657436: Hello professor I'm having trouble with this word problem.
It's necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 60 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
The answer in the book is 15 liters but I dont know how m get the equation. Thank you!!!!!
Click here to see answer by kevwill(135)

Question 657669: how many liters of a 10% acid solution must be mixed with a 50% acid solution in order to obtain 20 liters of a 30% solution
Click here to see answer by Alan3354(69443)

Question 657787: apple pucker is 15% alcohol and vodka is 35% alcohol. how much of each should be mixed to make an 8 oz drink that is 30% alcohol
Click here to see answer by josmiceli(19441)

Question 657808: How much of a 75% solution of ethanol should a chemist add to 1500 mL of a 40% solution to obtain a 50% solution?
Click here to see answer by stanbon(75887)

Question 657812: How much water must be evaporated from a 250 mL tank of a 3% salt solution to obtain a 5% solution?
Click here to see answer by stanbon(75887)

Question 658364: how many liters of a 10% alcohol solution must be mixed with 70 liters of a 80% solution to get a 60% solution? can you show me how to solve it as well as the answer please?

Click here to see answer by josmiceli(19441)

Question 203260: A solution of salt and water contains 18 ounces of pure salt and 36 ounces of water. How many ounces of water must be added to obtain a 24% pure salt solution?

I have tried many different solutions and I feel there is something more needed on the right hand side of the equation, but I can't figure it out.
1) x+36
---- = 24%
x+54
2) x+18
---- = 24%
x+24
Click here to see answer by NaturalBornNerd(5)

Question 658692: You have 18 milliliters of a 45% alcohol solution. How many milliliters of a 51% alcohol solution needs to be added to make a 49% alcohol solution?
Click here to see answer by stanbon(75887)

Question 206045: Hi,
Can someone please help me, I have tried to answer these problem and since I have been out of school for 15 years I lost.
1. Make a conjecture about the relationship between the original number and the final number in the following process.
Pick a number
Multiply the number by 5
Add 10 to the product
Divide the sum by 5
Subtract 1 from the quotient

This is the answer I got but I think it wrong
Answer:
Pick a number: let X be number
Multiply the number by: 5*X
Add 10 to the product: 5*X + 10
Divide the sum by 5: I get 1*X +10
Subtract 5 from the quotient: I get 1*X+5 so the original number X and the output is 1*X+5

2. Estimate: 0.5162 + 9.436 + 350.12 + 800. 25 + 25.78
Answer: 1186

3.Estimate: 3004 x 5982
My Answer: estimation 18000000
4. Estimate the area of the rectangle in square units. Each square represents 1 square unit.
Answer:
I do not know how to answer this question
Thank you
Sammie
Click here to see answer by NaturalBornNerd(5)

Question 206649: Hello,
Can someone please help with this problem.

1. Answer �Yes� or �No� for each question
If A  B and B  C, can you conclude that A  C? Can you conclude that A  C?
If A  B and B  C, can you conclude that A  C? Can you conclude that A  C?
If A  B and B  C, can you conclude that A  C? Can you conclude that A  C?
Answer:
If A  B and B  C then A  C
If A  B and A  C then A  C
I do not know why the symbols are squares.
Thank you,
S
Those are the yes answers

Click here to see answer by NaturalBornNerd(5)

Question 370860: Give an example of a solution you could add to achieve the desired result. Then explain why that solution would work.: You have a 68% alcohol solution. You want to end up with a solution containing 50% alcohol.
Click here to see answer by NaturalBornNerd(5)

Question 658866: Write a quadratic equation having given the solution of: -8, -5
Click here to see answer by nerdybill(7384)

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