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Question 909357: A rug is made by weaving 20 lb of yarn that is 50% wool with a yarn that is 25% wool. How many pounds of the yarn that is 25% wool must be used if the finished rug is to be 35% wool?
Click here to see answer by richwmiller(17219)

Question 909460: How many kilos containing 6% butterfat must be added to 220 kilos of cream containing 22% butterfat to make a mixture containing 10% butterfat?
Click here to see answer by stanbon(75887)

Question 909464: How many quarts of permanent anti-freeze must be added to 10% quarts of a 40% anti-freeze solution in a radiator of a truck to make a 25% anti-freeze solution?
Click here to see answer by stanbon(75887)

Question 909478: The ARC coffee company sells cashews for $5.50 per pound and peanuts for $3.50 per pound. The company wants to make five pound packages of mixed nuts and sell them for $4.00 per pound. How many pounds of peanuts should be in the mix?
Click here to see answer by richwmiller(17219)

Question 909482: What is the value of -2 raised to the -4 power?
Click here to see answer by richwmiller(17219)

Question 908576: Mario and Luigi leave two small towns that are 230 miles apart at the same time, traveling directly toward one another. Mario is traveling at a rate that is 15 mph slower than Luigi. They pass each other 2 hours later. What is their average speed?
Click here to see answer by richwmiller(17219)

Question 909498: How many ounces of a 25% alcohol solution must be mixed with a 11 ounces of a 30% of a solution to make a 26% alcohol solution
Click here to see answer by richwmiller(17219)

Question 909463: A photographer has two bottles of developer, one a 70% solution, the other, 20% solution. How much developer should he take from each bottle to make 10 ounces of 50% solution?
Click here to see answer by richwmiller(17219)

Question 909462: A solution consists of 20% acid, and the remainder is water. A chemist wishes to strengthen this solution. How many quarts of acid must be added to 24 quarts of the solution to make a mixture containing 40% acid? show solution
Click here to see answer by richwmiller(17219)

Question 909480: Consider the system:
3ax-2ay=1
2x-y=1/a
Fix the x coordinate of the solution.
Click here to see answer by josgarithmetic(39617)

Question 909608: will you pease help me solve this problem: nikita earns a base salary of $500 per month as a saleswomen. in addition to the salary, she earns $90 pr product that she sells. if nikita sells 50 products this month, how much does she earn?
Click here to see answer by JulietG(1812)

Question 909615: Determine the pattern in each group:
3,-6,12,4,20,?
7,16,8,27,9,?
2,7,26,101,400,?
7,21,8,72,9,?
Click here to see answer by JulietG(1812)

Question 909681: Nicole's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Nicole $5.75 per pound, and type B coffee costs $4.20 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $367.90. How many pounds of type A coffee were used?
Click here to see answer by richwmiller(17219)

Question 909698: Suppose the weights (W) of male student in MA102 are linearly related to their heights (h). If a student 150 cm tall weights 70kg, and a student 165 cm tall weights 110kg. a) write an equation to express weight in terms of height. B) If there is a student with 90kg weight, how tall is this student?
Click here to see answer by josmiceli(19441)

Question 909734: A merchant mixed 10 lb of a cinnamon tea with 6 lb of spice tea. The 16-pound mixture cost $38. A second mixture included 16 lb of the cinnamon tea and 6 lb of the spice tea. The 22-pound mixture cost $50. Find the cost per pound of the cinnamon tea and of the spice tea.
Click here to see answer by josgarithmetic(39617)

Question 909842: Rene, a chemist, needs to produce a 400 ml of 60 percent solution. He has 80 percent milk solution in stock, so he needs to dilute it with distilled water. How many ml of milk solution in stock and distilled water does chemist Rene needs?
Click here to see answer by stanbon(75887)

Question 909895: A chemist wants to make 60 ml of a 17% acid solution by mixing a 12% acid solution and an 18% acid solution. How many milliliters of each solution should the chemist use?

Click here to see answer by ewatrrr(24785)

Question 909899: a 100lb. rug was made by weaving a yarn that is 50% wool with one that is 25% wool. If the final rug is 35% wool, how many lbs of each type of wool is used?

Click here to see answer by ewatrrr(24785)

Question 909940: n=number
4 less than n/2 = 37 less than 2n.
A. Translate the sentence into an equation.
B. Solve the equation.
Click here to see answer by Theo(13342)

Question 909956: I need 90 milliliters of a 20% solution but only have 4% and 40% solutions available. how many many milliliters of each should be mixed to get my desired solution?
Click here to see answer by ewatrrr(24785)

Question 909996: Q#1-eight states in the United States start with the letter M. what fraction of states, in simplest form, begins with the letter M?
Click here to see answer by richwmiller(17219)

Question 910005: What is the cost of .7 pounds of oranges selling for $.90 per pound?

Click here to see answer by MathLover1(20850)

Question 910014: The value of 92 stamps is $14. There are 10 cent stamps and 25 cent stamps. Find the number of 10 cent stamps.
Click here to see answer by richwmiller(17219)

Question 910121: jorge added 15 g of ground Costa Rican coffee to 210 g of a ground mixture that contains 5% Costa Rican coffee. What is the percent of Costa Rican coffee in his new mixture
using the table if you can (start plus add equals finish).
Click here to see answer by josgarithmetic(39617)

Question 910099: A pound of tin is worth $1 more than a pound of copper. Four pounds of tin are mixed with 6 pounds of copper to make bronze that sells for $4.15 per pound. How much is a pound of tin worth?
Click here to see answer by josgarithmetic(39617)

Question 910147: Susie has six gallons of juice. She pours them into four equal containers and has 0.3 gallons left. How much are in each container?
Click here to see answer by josgarithmetic(39617)

Question 910167: How many gallons of 25% alcohol solution and 40% alcohol solution must be mixed to get 9 gallons of 30% alcohol solution?
Here's what I tried which has to be wrong...
25x+40y=30
.40+25(9-x)=30(9) ??? stumped and confused from hours of this.
Thank you !
Click here to see answer by lwsshak3(11628)

Question 910200: A dairy wishes to mix 1,000 pounds of milk containing 8% butterfat. If the mixture is to be made from milk containing 5% butterfat and cream containing 20% butterfat, how many pounds of each is needed?
Click here to see answer by richwmiller(17219)

Question 910102: To make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1% butterfat to obtain 60 gallons of a mixture containing 2% butterfat. How many gallons of each milk must be used?
1%= ? gal and 4%= ? gal
Click here to see answer by richwmiller(17219)

Question 910224: How many pounds do get for 3.60 if one pound cost 3.00
Click here to see answer by josmiceli(19441)

Question 910226: How many liters of a 25% alcohol solution must be mixed with a 12% solution to get 13L of a 15% solution?
Click here to see answer by richwmiller(17219)

Question 910262: A set of Jumpers was bought for the local football team. If each jumper costs $15, what was the total cost to the football club?
Click here to see answer by Alan3354(69443)

Question 910305: 15 liter of solution contain 40% of sulphuric acid it mixed with 25 liter of solution containing 60% of acid Find the percentage of water in that solution
Click here to see answer by Alan3354(69443)

Question 910350: a 6% acidic solution is combined with a 20% acidic solution to produce 35 gallons of a 12% acidic solution. determine how many gallons of the 6% acidic solution should be used
Click here to see answer by ewatrrr(24785)

Question 910256: 10 liter solution that is 30% alcohol is going to be dilluted to 20% alcohol by adding water how much is water is needed

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

Question 910409: A radiator contains 15 quarts of fluid, 35% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 50% antifreeze?
Click here to see answer by josgarithmetic(39617)

Question 910399: A 6% acidic solution is combined with a 20% acidic solution to produce 35 gallons of a 12% acidic solution. Determine how many gallons of the 20% acidic solution should be used.
Click here to see answer by richwmiller(17219)

Question 910489: the nut house sells pecans worth $4 per pounds and cashews worth $6 per pound. How many pounds of pecans and how many pounds of cashews must be mixed to form 16 lb of a nut mixture worth $4.50 per pound.
Click here to see answer by richwmiller(17219)

Question 910546: A 6% acidic solution is combined with a 20% acidic solution to produce 21 gallons of a 12% acidic solution. Determine how many gallons of the 6% acidic solution should be used.
Click here to see answer by richwmiller(17219)

Question 910464: How many gallons of 70% antifreeze should be mixed with 10 gallons of 30% antifreeze to obtain a 45% antifreeze mixture?
Here's what I have
(0.30)(10gal)+(0.70)(x)=(0.45)(10+x)
After I solve this I get 6 gallons but when I check the solution I don't get 45% so this cannot be the right way to solve this problem. Please help.
Click here to see answer by richwmiller(17219)

Question 910607: A wild birdseed mix is made by combining 150 lb of millet seed costing $0.50 per pound with sunflower seeds costing $1.40 per pound. How many pounds of sunflower seeds are needed to make a mixture that costs $0.80 per pound?
Click here to see answer by josgarithmetic(39617)

Question 910782: he has liquid fertilizer solutions that are 10% and 50% nitrogen. how many gallons of each of each of these solutions should he mix to obtain 20 gallons of a solution that is 35% nitrogen?
Click here to see answer by stanbon(75887)

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