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Question 366644: How many gallons of pure water must be added to 10 gallons of 30% saltwater to make a solution that is 25% saltwater?"
Click here to see answer by robertb(5830)

Question 366657: a paddle wheeler goes 10 miles against the current in a river in the same time that it goes 15 miles with the current. If the speed of the current is 3 mph, find the speed of the boat in the water.
Click here to see answer by mananth(16946)

Question 366705: at the begining of a walk roberto
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Question 366701: a store mixes kenyan coffee worth
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Question 366952: A car radiator contains 10 liters of a 20 percent antifreeze solution. How many liters will have to be drained and then replaced with pure anitfreeze if the resulting solution is to be 50 percent antifreeze?
Click here to see answer by stanbon(75887)

Question 366975: A store buys granola at $1/lb and dried fruit at $2/lb. and sells them at 25% markup. The store sells 2 special mixtures of granola and dried fruit. One customer buys 6 lbs. of Mixture A and 4 lbs of Mixture B and pays $17. Another custoemr reverses the proportions and pays a dollar more.
What is the recipe for Mixture A?
What is the recipe for Mixture B?
Click here to see answer by mananth(16946)

Question 366940: A lab orders a shipment of 100 rats a week, 52 weeks a year, from a rat supplier for experiments that the lab conducts. Prices for each weekly shipment of rats follow the distribution below:
Price 10 12.50 15.
Probability 0.2 0.3 0.5
How much should the lab budget for the next year's rat orders assuming this distribution does not change. Find the expected price.
Click here to see answer by robertb(5830)

Question 367306: The diagonal of a rectangular rug measures 26 ft, and the length is 4 ft more than twice the width. Find the length and width of the rug?
I can't figure this out. My numbers are turning into fractions and I don't think you can factor fractions. Please help.

Click here to see answer by msmaeghan(1)

Question 367330: A merchant has coffee worth $3 a pound that she wishes to mix with 60 pounds of coffee worth $9 a pound to get a mixture worth $8 a pound. How many pounds of the $3 coffee should be used?

Click here to see answer by checkley77(12844)

Question 367508: a chemist needs a solution that is 75% acid but only has solutions that are 35% and 85% acid. If The chemist measures 120ml of the 85% solution, how many milliliters of the 35% solution should she add to make a 75% solution?
Click here to see answer by stanbon(75887)

Question 367659: How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution?
Click here to see answer by Fombitz(32388)

Question 368026: how many grams of salt must be added to 40grams of a 28% salt solution to make it 40%?
Click here to see answer by robertb(5830)

Question 368228: a chemist mixes a 20% acid solution with a 60%acid solution to make 40 gallons of a 50%acid solution and how much of the 20% soloion and how much of the 60% solution was used
Click here to see answer by mananth(16946)

Question 368331: The sum of two consecutive integers is -201. Find the least of the two integers.
Click here to see answer by Fombitz(32388)

Question 368333: In a chemistry class, 5 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?
I'D REALLY APPRECIATE THE HELP!
Click here to see answer by amoresroy(361)

Question 368386: The length of a rectangular plot of land is 5 times the width. If the perimeter is 1,500 feet, find the dimensions of the plot. Round to one decimal place if necessary.
Click here to see answer by ewatrrr(24785)

Question 368550: how many ounces of 5% alchol solution and how many ounces of a 15% alchol solution must be mixed to get 40 ounces of a 9% alchol solution?
Click here to see answer by Fombitz(32388)

Question 368594: You make a deposit of 2000� into your account. the interest rate is 5% and the interest is added into the account first after one year and then annually. how long will it take your savings to grow to 10000� ?
Click here to see answer by Edwin McCravy(20055)

Question 368875: a solution is 30% chlorine and another solution is 60% chlorine.how many liters of each solution should you use to make 120 liters of a solution that is 40% chlorine
Click here to see answer by Fombitz(32388)

Question 368903: how many mililiters of a 10% alcohol solution must be added to 50
mililiters of 10% alcohol solution to make a 15% alcohol solution?
Click here to see answer by mananth(16946)

Question 368903: how many mililiters of a 10% alcohol solution must be added to 50
mililiters of 10% alcohol solution to make a 15% alcohol solution?
Click here to see answer by robertb(5830)

Question 368904: how many milliliter of a 19% alcohol solution must be added to 50 milliliter of 10% alcohol solution to make a 15% alcohol solution

Click here to see answer by mananth(16946)

Question 368936: how many ounces of nuts consisting 80 cents a pound must be mixed with nuts costing 60 cents a pound to make a 10 ounce mixture costing 70 cents a pound?
Click here to see answer by Fombitz(32388)

Question 368935: how many ounces of nuts consisting 80 cents a pound must be mixed with nuts costing 60 cents a pound to make a 10 ounce mixture costing 70 cents a pound?
Click here to see answer by Fombitz(32388)

Question 368971: A snack company wants to make a mixture of peanuts and raisins to sell for $4.99 per pound. They have 50 pounds of raisins that cost $1.99 per pound. Peanuts sell for $6.99 per pound. How many pounds of peanuts should they add to make a mixture that sells for $4.99 per pound?
Click here to see answer by Fombitz(32388)

Question 368962: a rancher is planning to put up 220 yards of fencing. IN the morning she puts up 80 yards, and in the afternoon she puts up 40% of the remaining fence. What percent of the fence did she put up that day?
Click here to see answer by lefty4ever26(59)

Question 369250: According to Wikipedia, the best-selling album in 2005 was Mariah Carey�s The Emancipation of Mimi. The best-selling album in 2004 was the album Confession by Usher. Confession sold 0.94 million copies less than twice the amount The Emancipation of Mimi sold. The sum of these two albums was 13.97 million copies. Determine the sales of both albums
Click here to see answer by stanbon(75887)

Question 369248: Suppose Wal-Mart stock is selling at $59 a share and Mattel stock is selling at $28 a share. Amy has a maximum of $6000 to invest. She wishes to purchase four times as many shares of Wal-Mart as of Mattel. Only whole shares of stock can be purchased.
a) How many shares of each will she purchase?
b) How much money will be left over?

Click here to see answer by mananth(16946)

Question 369251: Nick has two cans of white paint, one with a 2% yellow pigment and the other with a 5% yellow pigment. He wants to mix the two paints to get paint with a 4% yellow pigment. How much of the 5% yellow pigment paint should be mixed with 0.4 gallon of the 2% yellow pigment paint to get the desired paint?

Click here to see answer by stanbon(75887)

Question 369367: If there were 60 problems on a test and Betty got 90% of the problems correct, how many problems did she answer correctly?
Click here to see answer by mananth(16946)

Question 369367: If there were 60 problems on a test and Betty got 90% of the problems correct, how many problems did she answer correctly?
Click here to see answer by acalgebra(30)

Question 369618: How many Kg of a 35% copper alloy must be added to 62 Kg of a 75% copper alloy to give you a 50% copper alloy?
Click here to see answer by Fombitz(32388)

Question 369696: A goldsmith has 60 pounds of an alloy that is 50% pure gold. How many pounds of an alloy that is 75% pure gold, must be combined with the given 60 pounds of alloy that is 50% pure gold to form an alloy that will be 72% pure gold?
So far, I have done x+y=72 (not quite sure though if that equation is correct)

Click here to see answer by Fombitz(32388)

Question 369695: If a cake costs 74euro, milk cost 63euro, beer costs 78euro. What does lime cost ?
Click here to see answer by Fombitz(32388)

Question 370043: I have one solution of 70% acid 30% water and another that is 20% acid 80% water. How much of each would I need to attain 5 ounces of 65% acid 35% water.
Click here to see answer by Fombitz(32388)

Question 370172: How much of 30% HCl and 45% HCl would be needed to mix and produce 50 liters of 35% HCl?

Click here to see answer by Fombitz(32388)

Question 370172: How much of 30% HCl and 45% HCl would be needed to mix and produce 50 liters of 35% HCl?

Click here to see answer by stanbon(75887)

Question 370240: Show that -i is a root of x^3+5x^2+x+5=0
Click here to see answer by Fombitz(32388)

Question 370326: 1. There are 40 dimes and quarters in the drawer. Peggy counted them and found that their total value was $4.75. How many coins of each type were there?
That is the question, I know you need to make a chart with dimes, quarters, values, ect.. But I cant seem to set up the chart. Please Help?
Click here to see answer by jim_thompson5910(35256)

Question 370347: The price of a product is reduced by 12%. By what percentage must the sales grow, if the profit should be the same?
plz help
Click here to see answer by amoresroy(361)

Question 370606: How many liters of a 10% solution should be mixed with a 40% sol to obtain 50 liters of a 25% sol?
Click here to see answer by robertb(5830)

Question 370474: Pure acid is to be added to a 5% acid solution to obtain 95L of 60% solution. What amount of each should be used?
How many lilter of 100% pure acid should be used to make the solution?
How many liter of the 5% solution should be in the mixture?
Thank you
Click here to see answer by edjones(8007)

Question 370548: the percentage of acid in a mixture of 2 liters of water and x liters of 30% acid solution.
(Translating Word Phrases into Mathematical Expression)
Click here to see answer by robertb(5830)

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