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Question 662569: Please help me out
Solve the word problem
The Central Pacific Company laid an average of 9.6 miles of track per month. Together the two companies laid a total of 1775 miles of track.
a)Determine the average number of miles of track laid per month by the union Pacific Company
b) About how many miles of track did each company lay?
Click here to see answer by stanbon(75887)

Question 662571: I really need your help. Please
Here is the problem
When a sound travels through water, the distance y in meters that the sound travels in x seconds is given by the equation y= 1440x. How far does a sound travel underwater in 5 seconds?
Click here to see answer by ReadingBoosters(3246)

Question 662605: 89 students are in a class, 7 out of 8 are girls, how many are girls are there?
Click here to see answer by stanbon(75887)

Question 662621: In addition to oil-in-water and water-in-oil emulsions, there are also double emulsions called water-in-oil-in-water (w/o/w or WOW) and oil-in-water-in oil (o/w/o or OWO). WOW�s are more commonly used because food and supplements are usually composed of a continuous aqueous phase. WOW�s have recently been receiving enhanced news coverage due to their ability to potentially reduce the amount of fat in common foods. Based on what you already know about emulsion creation, hypothesize how you think a WOW emulsion is made. Make sure to back up your hypothesis with fact/reason.
Click here to see answer by stanbon(75887)

Question 662713: 9ml of a 50% alcohol solution was mixed with 6 ml of a 80% alcohol solution. what is the concentration of the mixture?
Click here to see answer by Alan3354(69443)

Question 662777: Can you please help me out solve this word problem
Twenty eight more than the product of a number and its reciprocal

Click here to see answer by DrBeeee(684)

Question 662796: How many ounces of pure water must be added to 60 oz. of a 8% salt solution to make a 3% salt solution?
Click here to see answer by ewatrrr(24785)

Question 662796: How many ounces of pure water must be added to 60 oz. of a 8% salt solution to make a 3% salt solution?
Click here to see answer by DrBeeee(684)

Question 662866: How would you prepare 180mg of tolnaftate 0.1% cream if you have in stock 225 g each of tolnaftate 0.1% cream and tolnaftate cream 0.25%?
Click here to see answer by Alan3354(69443)

Question 662795: An average score of 80 to 90 in a math class receives a B grade. A student has scores of 92, 66, 72 and 88 of four tests. Find the range of scores on the fifth test that will give the student a B for the course.

Click here to see answer by lynnlo(4176)

Question 662906: Copper that was 63% pure was melted together with copper that was 90% pure to make 18 kilograms of an alloy that was 75% pure. How many kilograms of each kind were used?
Click here to see answer by stanbon(75887)

Question 662912: How would I set up the following problem to find the answer?
How many pounds of M&M's containing 50% red M&M's would we have to mix with 5 pounds of M&M's containing only 25% red M&M's to obtain a final mix that contains 40% red M&M's?
Click here to see answer by stanbon(75887)

Question 662980: A sugar solution was made by mixing 8 qt of a 2% sugar solution and 6 qt of a 51% sugar solution. find the concentration of the new mixture
Click here to see answer by stanbon(75887)

Question 663153: an inheritance of $900000 is to be divided among Maria, Lorna and Fe in the following manner: Lorna is to receive 3/5 of what Maria while Fe gets 1/2 of what Maria gets. How much does each receive
Click here to see answer by josmiceli(19441)

Question 663221: How many liters of a 15% acid solution should be mixed with 30 liters of a 40% acid solution to obtain a 25% acid solution?
Click here to see answer by lostin(9)

Question 663012: A mixture of 90% gas and 10% oil is in a 50 gallon tank. The owner desires a 94% gas and 6% oil mixture. The owner will drain the necessary amount of the mixture and replace it with gas. what is the amount the owner should drain from the tank and replace with gas?
Please help: I think you start with .9x + .1y = 50, but then what?

Click here to see answer by ankor@dixie-net.com(22740)

Question 663326: A grocer mixes 5 lb of egg noodles costing .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?
Click here to see answer by checkley79(3341)

Question 663372: algebra question: how many pounds each of whole milk and cream should be mixed to form 800 lb of milk for cream cheese?
Click here to see answer by Alan3354(69443)

Question 663414: a father is three times as old as his son. after twelve years, his age will be twice as that of his son then. find their present ages.
Click here to see answer by stanbon(75887)

Question 663682: How many liters of a 17% acid solution should be mixed with 8 liters of an 11% acid solution to obtain a mixture tha is 15%?
Im just trying to study for a midterm, but I keep struggling on these.

Click here to see answer by ewatrrr(24785)

Question 663713: Pure acid is to be added to a 5% acid solution to obtain 95L of 28% solution. What amounts of each should be used? How many liters should be used of 100% pure acid to make this solution?
Click here to see answer by ewatrrr(24785)

Question 663776: if i have a acid solution at 5 % concentration and another one at 10% concentration how much of each solution do I need to obtain 50ml at 9% concentration
Click here to see answer by Alan3354(69443)

Question 663976: 17,370 canned goods are to be packed in 24 boxes to be given to charity.how many boxes can be filled?how many items will be left over?
Click here to see answer by jim_thompson5910(35256)

Question 663969: How many gallons of a 5% acid solution must be mixed with 3 gallons of a 65% acid solution to make a 41% solution
Click here to see answer by josmiceli(19441)

Question 664071: I am a salesperson & I close on 70% of all my sales. If I call on 4 sales, what is the probability that I will close on 3 of the 4 sales?
Click here to see answer by jim_thompson5910(35256)

Question 664309: A jar filled with change is holding $5.45 and has 41 coins. There are nickels, dimes and quarters. If we remove the nickels, the remaining coins have a value of $4.55. How many of each type of coin was there originally? Set up a system of 3 equations and solve to answer this question. Show your work!
Click here to see answer by lynnlo(4176)

Question 664325: .How many pounds of dried apples worth $5 per pound should me mixed with how many pounds of dried apricots worth $9 per pound to makel0 pounds of mixture worth $77?
Click here to see answer by stanbon(75887)

Question 664324: If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks?
Click here to see answer by ReadingBoosters(3246)

Question 664530: How can I change Sulphoric acid from 60% to 98% ?

Click here to see answer by josmiceli(19441)

Question 664565: a student mixes 5 lb of h2o at 200 degrees F with 7 lb of h2o at 65 degrees F. what is the final temperature of the mixture?
Click here to see answer by Theo(13342)

Question 664662: ou have 10 liters of a solution that is 30% alcohol, how many liters of a 80% alcohol solution must you add to obtain a solution that is 50% alcohol?
Click here to see answer by stanbon(75887)

Question 664876: what must be added to 1/3 to obtain 1
Click here to see answer by vleith(2983)

Question 664932: How many liters of a 20% alcohol solution must be mixed with 20 liters of a 70% solution to get a 60% solution?

Click here to see answer by vleith(2983)

Question 664854: 5 + a= 3
Click here to see answer by lynnlo(4176)

Question 664854: 5 + a= 3
Click here to see answer by Sacrifice(3)

Question 665032: pure acid is to be added to a 10%acid solution to obtain 90l of 89% solution . what amounts of each should be used?
Click here to see answer by vleith(2983)

Question 664988: Assume that a jeweler needs 45 grams of a alloy that is 70% gold. He has avaiable one alloy that is 35% gold, and another that is 80% gold; he will mix some of each.
If x = number of grams of the first alloy ( so the number of grams of the second is 45-x). Find x.

Im having some trouble in how I should proceed this type of math problem and how to find the correct answer,. Thanks for the help to anyone that can answer.
Click here to see answer by ankor@dixie-net.com(22740)

Question 665218: soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350 lb mixture that is 12% protein. Please explain with a table if possible
Click here to see answer by josmiceli(19441)

Question 664408: Let's say that a 6-ounce cup of coffee is 20 percent milk. If you add 3 ounces of coffee, what is the percentage of milk in the new mixture?
Click here to see answer by Sacrifice(3)

Question 665374: I am a parent trying to help my son, and I can get the answer, but I don't know how to write it for him, or show him the work. The question is: A tv ad claims that 4L of paint will cover 40m2. How much paint is needed to cover 70M2? I believe the answer is 7L, but I don't know how to show thw work, or write it down.
Click here to see answer by Alan3354(69443)

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