Questions on Word Problems: Mixtures answered by real tutors!

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Question 550825: Find (g � f)(4) for the functions below:
F(x)=x+3, g(x) = 1/x^2
(g � f)(4) =

Click here to see answer by Alan3354(69443)

Question 550950: Jackie mixes some 35% acid solution with some 70% acid solution to make 100mL of a 42% acid solution. How much of the 35% acid solution did she use?
Click here to see answer by Maths68(1474)

Question 550996: you are applying a pesticide to a triangular area that has a base of 325 feet and height of 150 feet . what is the area
Click here to see answer by mananth(16946)

Question 551049: A goat is tied to one of the corners of a rectangular barn on a rope that is 50 feet long. The dimensions of the barn are 40 feet by 30 feet. Assuming that the goat can graze wherever its rope allows it to reach, what is the square footage of the grazing area for the goat?
Click here to see answer by mathstutor494(120)

Question 551063: Fruit drink A consists of 6% pure fruit juice and drink B consists of 15% pure fruit juice. How much of each kind of drink should you mix together to get 4 L of a 10% concentration of fruit juice?
Click here to see answer by mananth(16946)

Question 551060: A chemist wants to make a 10% solution of fertilizer. How much water and how much of a 30% solution should the chemist mix to get 30L of a 10% solution?
Click here to see answer by oberobic(2304)

Question 551101: A chemist has one solution that is 20% acid and a second that is 65% acid. How many gallons of each should be mixed together to get 120 gallons of a solution that is 50% acid?
Click here to see answer by josmiceli(19441)

Question 551089: How much soil containing 45% sand do you need to add to 1ft.of soil containing 15% sand in order to make a soil containing 35% sand?
Click here to see answer by josmiceli(19441)

Question 551193: a housewife wishes to mix coffee beans worth Php60 and Php85 a kilogram to obtain 50 kilogram to obtain 50 kilograms of coffee beans worth 70 a kilogram. How many kilogram of each should she use?

Click here to see answer by mananth(16946)

Question 551261: v+9
--- =8
3
Click here to see answer by jim_thompson5910(35256)

Question 551260: -9( 6m -3)+6(1+4m)
Click here to see answer by jim_thompson5910(35256)

Question 551217: Please help me solve this Question :
A certain amount of alcohol with a concentration of 90%
was mixed with an amount of alcohol smaller by 20 liters
and having a concentration of 30%. Afterward, 15 liters of
water evaporated from the mixture and the concentration of
the alcohol was 72%. How many liters of alcohol of 72%
concentration were formed?
Click here to see answer by lwsshak3(11628)

Question 551305: how many gallons of 25% sugar content kool aid and 40% sugar content kool aid need to be mixed in order to make 50 gallons of 30% sugar content kool aid?
Click here to see answer by chelcilovesmj1(3)

Question 551357: At a spring concert, tickets for adults cost $4.00 and tickets for students cost $2.50. How many of each kind of tickets were purchased if 125 tickets were bought for $413.00?
Click here to see answer by mananth(16946)

Question 551396: The radiator of a jeep has a capacity of 4 gallons. It is filled with an anti-freeze solution of water and glycol which analyzes 10% glycol. What volume of the mixture must be drawn off and replaced with glycol to obtain a 25% glycol solution? All percentages are by volume. Please thank you~ <3
Click here to see answer by Earlsdon(6294)

Question 551302: The supervisor sells 1 type of tea for $11.00 pd and the other for $5.00 pd The supervisor wants to make 70 pds of the $11 tea for $7.00 pd....how much of the $5.00 should be used?
Click here to see answer by Theo(13342)

Question 551404: Could you please help me with this question?:(Mady has an infinite number of balls and empty boxes available to her. The empty boxes, each capable of holding four balls, are arranged in a row from left to right. At the first step, she places a ball in the first box of the row. At each subsequent step, she places a ball in the first box of the row that still has room for a ball and empties any previous boxes. How many balls in total are in the boxes as a result of Mady�s 2010th step?)I tried to do this problem by trying to find a formula for calculating how many steps she takes to fill a box. It didn't work and I do not understand a different way to solve this problem.
Click here to see answer by richard1234(7193)

Question 551532: How many liters of a 15% sugar solution should be added to 30 liters of a 25% sugar solution
to obtain a 20% sugar solution? Solve by setting up appropriate equation(s).
Click here to see answer by Earlsdon(6294)

Question 551699: How much pure acid must be added to 50mL of 25% acid solution to produce a mixture that is 60% acid ?
Click here to see answer by mananth(16946)

Question 551707: How much pure acid must be added to 50ml of 25% acid solution to produce a mixture that is 60% acid
Click here to see answer by mananth(16946)

Question 551721: one cup of nuts that contain exactly half peanuts and half cashew is added to a bowl of nuts that is exactly 1/3 peanuts,1/3 cashews and 1/3 almonds.This result in a three cup mixture of nuts.What fraction of the new nut mixture is peanuts?
Click here to see answer by fcabanski(1391)

Question 552006: How any mL of a 67percent solution should be added to make a 72 percent solution?
Click here to see answer by Alan3354(69443)

Question 552081: An acid solution was made by mixing 2 ml of a 10% acid solution and 8 ml of a 40% acid solution. Find the concentration of the new mixture.
Click here to see answer by Maths68(1474)

Question 552089: IF A TANKER TRUCK DELIVERS 1000 GALLONS OF 50 PERCENT SODIUM HYDROXIDE TO THE WATER PLANT HOW MUCH WATER DO I ADD TO GET A 25 PERCENT CONCENTRATION.
Click here to see answer by Theo(13342)

Question 552163: Please help me solve this mixture problem:
How many pounds of gourmet candy selling for $2.80 per pound should be mixed with 7 pounds of gourmet candy selling for $1.60 per pound to obtain a mixture selling for $1.96 per pound?
A. 4 lb
B. 3 lb
C. 1 lb
D. 5 lb
I can solve it by trial and error, but is their a formula that will work?
Click here to see answer by AnlytcPhil(1806)

Question 552389: will you please help me with this word problem I'm having trouble :
if 2 1/2 pounds of walnuts cost 2.50. how much do walnuts cost per pound
Click here to see answer by stanbon(75887)

Question 552102: A man has a 50 kilograms mixture that is one-third cement and two-thirds sand. How much of a mixture that half cement and half sand must be added to the 50 kilogram mixture to produce a mixture that is one-fourth cement and three-fourths sand?
Click here to see answer by ptaylor(2198)

Question 552667: A total of $3000 is invested, part at 2% simple interest and part at 4%. If the total
annual return from the two investments is $100, how much is invested at each
rate?
Click here to see answer by Earlsdon(6294)

Question 552958: As a Christmas Specialty, Lisette makes 120 pounds of candy to sell at 20.00per pound. she mixes candy which sells for 16.50 per pound with same amount of another candy which usually sells for 23.50 per pound. How many pounds of each will she usE?

Click here to see answer by mananth(16946)

Question 553600: how many ounces of water should be added to 24 ounces of an alcohol/ water solution containing 44% alcohol to dilute it to 20% alcohol?
Click here to see answer by josmiceli(19441)

Question 553609: one solution is 20% acid and another is 70% acid. How many liters of each solution should you use to make 4 liters of a 55% solution
Click here to see answer by mananth(16946)

Question 553942: how many gallons of a 50% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture of 40% antifreeze
Click here to see answer by josmiceli(19441)

Question 553950: I am trying to figure out what the small lines means in number wise on a grocery store scale. I have read and counted that there are 15 small lines in between the big numbers. My question is this. For instance, a bunch of broccoli will cost the consumers .98c a lb. So, if I purchase over the amount, how do I do the math? I just know that if I purchase 2 lbs worth, then I pay $1.96 total. But if it goes past the 2 pounds and does not exactly extend to the 1/2 mark but the needle lands in between the big whole numbers and the half mark, then how do I make my calculations from there?
I am told that each small line in between the big bold numbers and the half are numbers, but I do not know what they are...SERIOUSLY....please help me to understand the weight scales in the produce section, I do not know what the numbers are for the 15 lines that are shown when it comes to weighing my food.
Thank you,
Ann
alhrtsnengdcrs@yahoo.com
Click here to see answer by KMST(5328)

Question 553982: When Red Cubs played against the Archers,15 000 seats were sold.A reserved seat cost 500.00, but admission to the unreserved seats was 350.00. The total receipts were 6 000 000.00. How many reserved seats were sold?
Click here to see answer by lwsshak3(11628)

Question 553985: Three different types of candy that cost $1.29, $1.79, and
$2.39 per pound are to be mixed to produce 14 pounds of
candy worth $23.86. If there is to be twice as much of the
$1.29 candy as the $2.39 candy, how much of each type
should be mixed together?
Click here to see answer by lwsshak3(11628)

Question 554172: If you have 7 pounds of sugar and 2 pounds of coffee that cost $8.50 and, if at the same price per pound, you have 5 pounds of sugar and 3 pounds of coffee that cost $10.00, how much is one pound of each item?
Click here to see answer by stanbon(75887)

Question 554353: Peanuts were mixed with p pounds of cashews to make 100 pounds of a mixture. Write an expression that represents the number of pounds of peanuts that were used.
Click here to see answer by stanbon(75887)

Question 554370: 3.5 + f = 1.2
Click here to see answer by Maths68(1474)

Question 554553: Its not much of a question as it is solving technique. Is it possible to solve a mixture word problem by using a percent/proportion set up? If I do that I would think I would have like 3 different proportions set up to input the information where it would belong. Then I saw the chart/table and the equation: the amount x the percent x the amount x the percent= percent and amount totals. Which is the best way to go about doing this?
Click here to see answer by stanbon(75887)

Question 555010: What quantity of pure acid must be added to 500 mL of a 25% acid solution to produce a 75% acid solution?
Click here to see answer by josmiceli(19441)

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