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Question 1068690: you are asked to prepare 100 ml of a potassium permanganate solution so that a 1 part to 3 parts dilution gives a 0.5 % w/v solution. How much potassium permanganate should be used?
the answer that i found was 1.5g but in my textbook it says "2g"
i thought 1 part to 3 parts means 1 part of the active ingredient and 2 parts of the diluent/water am i wrong ?
another question the ratio 1:10 does it mean 1 part of the active ingredient and 9 parts of the diluent/water or 10 parts of the diluent/water
Click here to see answer by josgarithmetic(39617)

Question 1069002: A grocer has two kinds of tea, one selling for 80 cents per pound and the other selling for 60 cents per pound. How many pounds of each kind must he use to make 50 pounds of tea that will sell for 74 cents per pound?

Click here to see answer by josgarithmetic(39617)

Question 1069007: the ratio of the fertilizer was 5 parts nitrogen to ten parts all other ingredients. The farmer bought 135 pounds of fertilizer. How many pounds of nitrogen did he get?
Click here to see answer by Boreal(15235)

Question 1069119: How many ounces of vermouth containing 10% alcohol should be added to 20 ounces of gin containing 50% alcohol to make a pitcher of martinis that contain 30% of alcohol?
Click here to see answer by josmiceli(19441)

Question 1069136: if you need 100lbs of.gold and ore.is 25% pure gold how many lbs of.ore will you need

Click here to see answer by Boreal(15235)

Question 1069188: Two liters of a 3% acid solution needs to be diluted to a 2% solution. How many liters of an 1% acid solution should be mixed with the 2-liter solution?.
Click here to see answer by josmiceli(19441)

Question 1069346: If I bought 100 bottles of juice for 500 dollars and sold each bottle for 15 dollars hoe much money would I profit
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Question 1069376: How many pounds of candy that sells for 0.67 per lb must be mixed with candy that sells for 1.34 per lb to obtain 9 lb of a mixture that should sell for 0.95 per lb?
Click here to see answer by josgarithmetic(39617)

Question 1069565: Use a system of equations to solve this problem.
A chemist currently has two solutions of sodium chloride. One solution has a 5% concentration and the other has a 25% concentration. The chemist needs to make 10 L of a 10% sodium chloride solution.
Let x = the amount of 5% solution.
Let y = the amount of 25% solution.

How much of each solution does the chemist need to make?
Enter your answers, as decimals, in the boxes.
Click here to see answer by josgarithmetic(39617)

Question 1069662: A homeowner wants to spread 200 pounds of a grass seed mixture that is 50% bluegrass. The local hardware store has on hand a mixture that is 90% bluegrass and a mixture that is 20% bluegrass. How many pounds of each mixture does the homeowner buy to make the 200 pounds of 50% mix?
Click here to see answer by josgarithmetic(39617)

Question 1069813: A shop that sells nuts has one mixture that is 30% pecans and
70% peanuts. A second mixture is 40% pecans and 60% peanuts.
The manager wants to make a mixture that is 38% pecans. She
wants to use 25 ounces more of the second mixture than the
first. How many ounces of each mixture should she use?
Thanks!
Click here to see answer by Boreal(15235)

Question 1069852: a rope that is 33 feet long is cut into three pieces one piece is twice as long as the shortest piece the third piece is 5 feet longer than the shortest piece find the length of each piece
Click here to see answer by josmiceli(19441)

Question 1070021: 80% of 600
Click here to see answer by ikleyn(52784)

Question 1070096: The diameter of circle R is 2/3 the length of the diameter of circle P. How do the areas of the two circles compare ??
Click here to see answer by josgarithmetic(39617)

Question 1070155: A paint mixture contains 17 gallons of base for every gallon of color. In 774 gallons of paint, how many gallons of color are there?
Click here to see answer by Fombitz(32388)

Question 1069910: Every asterisk in the question 2*0*1*5*2*0*1*5*2*0*1*5 = 0 is to be replaced by either + or - so that the equation is correct. what is the smallest number of asterisks that must be replaced with + ?
Click here to see answer by KMST(5328)

Question 1070296: Suppose that there are two types of tickets to a show: Advance and same day. Advance tickets cost $25 and same day tickets cost $20. For one performance, there were 55 tickets sold in all, and the total amount paid for them was $1300. how many tickets of each type were sold?
Click here to see answer by josgarithmetic(39617)

Question 1070360: A container holds 10 pints of a solution which is 20% acid if 3 quarts of pure acid or added to the container what percent of the resulting mixture is acid
Click here to see answer by josmiceli(19441)

Question 1070433: meralda is kayaking in the grand river which has a downstream flow (current) of 1 mile per hor. She paddles 5 miles downstream and then turns around and paddles 6 miles upstream, the trail takes 3 hours how fast can she paddle in still water?
Click here to see answer by Boreal(15235)

Question 1070593: Two gasohol mixtures are available, one with 6.35% alcohol and the other with 11.28% alcohol. How many litres of the 6.35% mixture must be added to 26.1 L of the other mixture to make a final mixture containing 8.00% alcohol?
Click here to see answer by josmiceli(19441)

Question 1070665: 1 1/9 x 1 1/3
Click here to see answer by josgarithmetic(39617)

Question 1070665: 1 1/9 x 1 1/3
Click here to see answer by rfer(16322)

Question 1070682: A photograph measures 8 in. by 10 in. Earl put if in a frame that added 2 in. to every side. Find the other perimeter and total area of the frame.

Click here to see answer by josgarithmetic(39617)

Question 1070767: For the initial value problem, compute the first two approximations u1 and u2 given by Euler's method using the given time step.y'(t) =4y, y(0) =5; Delta(t) = 0.5
Click here to see answer by Fombitz(32388)

Question 1070768: The delivery of a drug (such as an antibiotic) through an intravenous line may be modeled by the differential equation m'(t) + km(t) = I, where m(t) is the mass of the drug in the blood at time t ≥0, k is a constant that describes the rate at which the drug is absorbed, and I is the infusion rate. Let I =15 mg/hr and k = 0.5 hr-1 . For what initial values m(0) = A are solutions increasing? decreasing? What is the equilibrium solution?
Click here to see answer by Fombitz(32388)

Question 1070825: A radiator contains 6 quarts of fluid, 15% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 45% antifreeze? Round your answer to two decimal places
Click here to see answer by josgarithmetic(39617)

Question 1070834: A radiator contains 6 quarts of fluid, 15% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 45% antifreeze? (Round your answer to two decimal places.)
Click here to see answer by josmiceli(19441)

Question 1070848: Solve the initial value problem and leave the solution in implicit form.
y'(x)√y+9=√x-2, y(11)=-5

Thanks
Click here to see answer by Fombitz(32388)

Question 1070846: Find the general solution of the equation. Express the solution explicitly as a function of the
independent variable.
y=e^(4t)y'(t)=-7

Thanks .
Click here to see answer by Fombitz(32388)

Question 1070952: You create a recipe for slime mixing some 20% pure slime and some 80% pure slime to create 1000 gallons of 65% pure slime mixture. How many gallons of the 20% mixture are needed?
Click here to see answer by josgarithmetic(39617)

Question 1071008: A dairy farmer wants to mix a 55% protein supplement and a standard 15% protein ration to make 1800 pounds of a high-grade 25% protein ration how many pounds of each should he
Click here to see answer by josgarithmetic(39617)

Question 1071059: A pharmacist wishes to mix a solution that is 5% Minoxidil. She has on hand 60 ml of a 3% solution and wishes to add some 7% solution to obtain the desired 5% solution. How much 7% solution should she add?
Click here to see answer by josgarithmetic(39617)

Question 1071082: how many liters of distilled water must be added to 80% liters of 60% acid solution to obtain a 50% acid solution?
Click here to see answer by Alan3354(69443)

Question 1071101: a chemist has a 2% acid soluton and an 8% acid solutons. he wants to mix the solutons to get 300 mL of a 5.5% acid solution. how many milliliters of each solution does he need?
Click here to see answer by josgarithmetic(39617)

Question 1071063: Nico is saving money for his college education. He invests some money at 9%, and $1400 less than that amount at 6%. The investments produced a total of $201 interest in 1 yr. How much did he invest at each rate?
Click here to see answer by ankor@dixie-net.com(22740)

Question 1071197: You need a 25% alcohol solution. On hand, you have a 125 mL of a 45% alcohol mixture. How much pure water will you need to add to obtain the desired solution?
You will need
mL of pure water
to obtain
mL of the desired 25% solution.
Click here to see answer by josgarithmetic(39617)

Question 1071206: A pharmacist wishes to mix a solution that is 2% minoxidil she has on hand 60 milliliter of a 1% solution and wishes to add some 4% solution to obtain the desired 2% solution how much 4% solution should she add?
Click here to see answer by josgarithmetic(39617)

Question 1071178: At the end of the month, after filling orders for its regular customers, Ghirardelli Chocolate Company has some Twilight Delight Chocolate pieces of individually wrapped candy and some Dark Chocolate with sea salt individually wrapped pieces of candy left over. The practice of the company has been to package a mixture of the two chocolates into 1-pound packages as follows: a saltier blend of 4 ounces of Twilight Delight Chocolate and 12 ounces of Dark chocolate with sea salt and another blend containing 8 ounces of each type of candy. A profit of $.30 per package is made on the saltier blend and $.40 per package on the other blend. This month, 120 pounds of Dark Chocolate with sea salt and 100 pounds of Twilight Delight Chocolate are left over. How many packages of each mixture should be prepared to achieve a maximum profit? (Remember that there are 16 ounces in a pound)
Click here to see answer by Theo(13342)

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