Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 630192: Please help me solve this equation:0-[100+125-(-256)]?
Click here to see answer by richwmiller(17219)

Question 630249: sana purchases 3 lbs of mixed nuts and 89 cents per pound . hina purchases 2 lbs of peanuts at 49 cents per pound. what is the average price per pound for the mixture of both purchases ?
Click here to see answer by stanbon(75887)

Question 630219: Please help me solve this problem: 0-[100+125-(-256)]
Click here to see answer by lynnlo(4176)

Question 630219: Please help me solve this problem: 0-[100+125-(-256)]
Click here to see answer by Alan3354(69443)

Question 630366: Kwamee created a coffee blend for his cafe by mixing Kona beans and Fuji beans.

Click here to see answer by richwmiller(17219)

Question 630367: Kwamee created a coffee blend for his cafe by mixing Kona beans and Fuji beans.
Kona beans cost $10.25 per pound and Fuji beans cost $8.25 per pound.
He bought a total of 32 pounds of coffee beans and it cost $302.
Kwamee bought___ pounds of Kona beans and____ pounds of Fuji beans.
Click here to see answer by josmiceli(19441)

Question 630481: How many gallons of a 12%-salt solution must be mixed with 6 gallons of a 21%-salt solution to obtain a 15%-salt solution?
Click here to see answer by Maths68(1474)

Question 630497: The area of a rectangular athletic field is represented by the expression:
48x^4+32x^3-72x SQUARE METERS.
Write an algebrebraic expression to represent ONE possible set of dimensions (IN THE SENSE "LENGTH TIMES WIDTH") of the athletic field. Include correct units with your solutions.
I have tried- for several days working on this problem - before turning to you folks..
Click here to see answer by richwmiller(17219)

Question 630617: A triangular yield sign needs to be constructed. Find the number of square centimeters of aluminum needed for a sign that has a base of 37.5 centimeters and a height of 65 centimeters.

Click here to see answer by 55305(86)

Question 630637: Andrew factored the expression -4x^3+2x^2+8x as -2x(4x^2-2x-8). But when Melissa applied the distributive law and multiplied out -2x(4x^2-2x-8), she got -8x^3+4x^2+16x; thus, Andrew's solution does not appear to check. Why is this?
Please help Andrew to understand this better. EXPLAIN YOUR REASONING and correctly factor the orginal expression, if possible. If the expression is prime, so state.
I have worked on this and I am totally messed up. Can you help?
Thanks in advance...
Click here to see answer by dfrazzetto(283)

Question 630740: Megan FACTORED the expression: 35x@- 38-x+8 as (5x-2) (7x-4). But when Jacob applied the FOIL principle and multiple out (5x-2) (7x-4), he got 35x^2 +8; thus, Megan's solution does not appear to check. WHY IS THAT? Please help Megan to understand this better. Explain your reasoning and CORRECTLY factor the orginal expression, if possible. if the expression is prime, so state it.

Now when I worked it out: I got something totally different..
For Megan I got (5x-4) (7x-2) GCF would be equal to 5x-4
Or (5x-2) (7x-4)
5x*7 x-5 x * 4 -2 * 7 x 2 * 4
5x * 7 x- 5 x* 4-2 *2* 7 x 2 * 4
5 * xx x-5 * 4x-14x+8
35 x ^1+1-20x-14x+8
35 x^2-34 x +8
Or have I gotten myself ALL mixed up?????

Click here to see answer by Theo(13342)

Question 630760: I need to dilute a 16 ounce bottle of 35 percent hydrogen peroxide to equal 12 percent hydrogen peroxide. How much water do I add?
Click here to see answer by Alan3354(69443)

Question 630802: how much water should be added to 30 liters of a 40 percent acid solution to reduce it to a 30 percent solution?
Click here to see answer by stanbon(75887)

Question 630928: Kayla has 25 ounces of a 75% boric acid solution. How many ounces of 35% boric acid solution should she add to obtain a solution of 60% boric acid?
Click here to see answer by stanbon(75887)

Question 630882: a yard that backs onto a river so that only three sides to be fenced and you have 68m of fencing , how much fencing do u need?
Click here to see answer by Alan3354(69443)

Question 630935: By weight,one fertilizer is 10% potassium, 40% nitrogen and 50% phosphorous. A second fertilizer has percents 10, 20 & 70, respectively and a third fertilizer has percents of 0, 40, and 60 respectively. How much of each must be mixed to get 200 lbs of fertilizer with percents of 8, 30 & 62, respectively?
___ lbs of first mixture
___ lbs of second mixture
___ lbs of third mixture
Click here to see answer by josmiceli(19441)

Question 630988: A laboratory has a solution that contains 3 ounces of benzalkonium chloride. If this is 6% of the total solution, how many ounces of solution does the lab have?
Click here to see answer by lwsshak3(11628)

Question 631046: Sandra is 5 times as old as her son Ross. 3 years ago she was 7 times his age. How old is Ross?
Click here to see answer by 303795(602)

Question 631193: At the 2012 State of the Union address, President Obama highlighted the rising cost of attending college. According to College Board, the cost to attend a college or university increased by 80% from 1994 to 2012. If the cost in 2012 is estimated at $18000, find the cost in 1994.
Click here to see answer by jim_thompson5910(35256)

Question 631197: the rising cost of attending college. According to College Board, the cost to attend a college or university increased by 80% from 1994 to 2012. If the cost in 2012 is estimated at $18000, find the cost in 1994.
Click here to see answer by jim_thompson5910(35256)

Question 631278: A candy mix that sells for $2.50 a pound is to be mixed with a candy mix that sells for $5.00 a pound. How much of each should be used to make 50 pounds of mix that sells for $4.00 a pound?
Click here to see answer by mananth(16946)

Question 631281: How many mL of acid must be added to 50 mL of a 10% acid solution in order to produce a 20% acid solution?
Click here to see answer by lwsshak3(11628)

Question 631280: You have 15 L of 24% acid solution. How much water should you add in order to dilute the solution so that it is 8% acid?
Click here to see answer by lwsshak3(11628)

Question 631413: How many gallons of a 4% acid solution should be mixed with 30 gallons of a 14% acid solution to obtain a mixture that is 8% acid?
Click here to see answer by ewatrrr(24785)

Question 631483: Rewrite with POSITIVE exponents. Assume that even roots are nonnegative quantives and that all denominators are nonzero.
( 2x )^-4
----
y^2
Thanks to all in advance.
Click here to see answer by Tatiana_Stebko(1539)

Question 631657: A cylinder contains 50 liters of a 60% chemical solution. How much of this solution should be drained off and replaced with a 40% solution to obtain a final strength of 46%?

Click here to see answer by nerdybill(7384)

Question 631697: How many gallons of pure alcohol must be mixed with 5 gallons of a solution that is 20 percent to make a solution that is 50% alcohol?
Click here to see answer by josmiceli(19441)

Question 631789: A chemist needs 90 milliliters of a 42% solution but has only 38% and 47% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Click here to see answer by richwmiller(17219)

Question 631963: Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280-lb mixture that is 12% protein?
How the heck do I obtain the results? I understand converting the % to decimals, but now how to set this one up. Help asap is very appreciated.
Click here to see answer by josmiceli(19441)

Question 632129: A dealer wishes to produce 300 gallons of oil worth 40 a quart. He has oil worth 36 a quart and oil worth 52 a quart. How many quarts of each should he mix?
Click here to see answer by ewatrrr(24785)

Question 632119: How much of an alloy this is 20% should be mixed with 500 ounces of alloy that is 80% copper in order to get and alloy that is 30% copper?
Click here to see answer by josmiceli(19441)

Question 632314: How many gallons of 60% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 50% antifreeze? Use the six-step method.
Click here to see answer by mananth(16946)

Question 632291: Fifteen pounds of trail mix are made by mixing 3 pounds of raisins worth $3 per pound with peanuts worth $4 per pound and M&Ms worth $5 per pound. How many pounds of peanuts must be used if the mixture is to be worth $4.20 per pound?
Click here to see answer by richwmiller(17219)

Question 632472: A car has a 15 quart capacity. There are 12 quarts with 30% antifreeze solution. How many quarts of pure antifreeze will you need to strengthen the solution to 40%?
Please help! Thanks!
Click here to see answer by josmiceli(19441)

Question 632554: There is a solution whixh contains 40% alcohol and 60%water.
how much percentage of water we need to add to make alcohol 1%...???
Click here to see answer by josmiceli(19441)

Question 632636: Thirty gallons of a 14% acid solution mixed with 60 gallons of a 20% acid solution yield 90 gallons of an x% acid solution. What is the value of x?
Click here to see answer by nerdybill(7384)

Question 632793: How many ounces of a 50 % acetic acid solution should a photographer add to 32 ounces of a 5 % solution to obtain 30 % acetic acid
Click here to see answer by mananth(16946)

Question 632780: The cost of 8 adult's tickets and 7 children's tickets is $82.45. The cost of 4 adult's tickets and 9 children's tickets is $65.15. Find the cost of each adult's ticket and each child's ticket. In the answer box below enter the cost of each adult's ticket
Click here to see answer by mananth(16946)

Question 632783: You need to prepare 65 mL of a 60% soda/syrup �prescription�. To do this, you can use the 80% soda
solution and the syrup solution (0%) that you have in inventory. How many mL of each solution do you
need to create this final solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 633278: peanuts 2 dollars per pound and cashews 3.5 dollars per pound.
200 pound mix at 2.5 dollars per pound.
Click here to see answer by richwmiller(17219)

Question 633258: A goldsmith has two gold alloys. The first alloy is 30% gold; the second alloy is 80% gold. How many grams of each should be mixed to produce 40 grams of an alloy that is 70% gold?
Amount of 30% gold in grams?
Amount of 80% gold in grams??
Click here to see answer by ankor@dixie-net.com(22740)

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