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Question 1109252: At a used car dealership, the first determinant in the price of the car is the model, followed by the mileage and the age of the car. Which of the following is the dependent variable?
A. price
B. model
C. mileage
D. age
Click here to see answer by Theo(13342)

Question 1109318: A pharmacist wishes to mix a solution that is 5% Minoxidil. She has on hand 90 ml of a 2% 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 ikleyn(52788)

Question 1109336: A web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes. The size of the high quality version is 4.1 megabytes. Yesterday, the high quality version was downloaded three times as often as the standard version. The total size download for the two versions was 4234 megabytes. How many downloads of the standard version were there?
Click here to see answer by stanbon(75887)

Question 1109345: At the movie theater, child admission is $5.10 and adult admission is $9.40. On Thursday, 124 tickets were sold for a total sales of $868.90. How many adult tickets were sold that day?
Click here to see answer by stanbon(75887)

Question 1109344: At the movie theater, child admission is $5.10 and adult admission is $9.rp. On Thursday, 124 tickets were sold for a total sales of $868.90. How many adult tickets were sold that day?
Click here to see answer by ikleyn(52788)

Question 1109409: Household cleaners: as a cleaning agent a solution that had is 28% vinegar is often used. How much pure (100%) vinegar and 10% vinegar must be mixed to obtain a 100 oz of 28% solution
Click here to see answer by Boreal(15235)

Question 1109475: Twelve iron poles are to be used for pillars and the lengths of the poles from an Arithmetic progression. If the third pole is 4m and the seventh is 10m, find the; (a) lengths of the poles in order of A.P.
(b) cost of all the poles if a metre costs 45.00naira.
Click here to see answer by rothauserc(4718)

Question 1109827: Lisa is making a mixture of Chlorine and water in her science class. She needs to make 13 ml of a 60% chlorine solution which is 75% chlorine. How many milliliters of each solution does she need?
Click here to see answer by ikleyn(52788)

Question 1110017: By mass, one alloy consists of 60% copper and 40% ziinc. Another is 30% copper and 70% zinc. How many grams of each alloy are needed to make 120g of an alloy that consists of 50% of each metal?
Click here to see answer by stanbon(75887)

Question 1110229: Given the cost function Upper C left parenthesis x right parenthesisC(x) and the revenue function Upper R left parenthesis x right parenthesisR(x), find the number of units x that must be sold to break even.
Upper C left parenthesis x right parenthesisC(x)equals=1414xplus+64 comma 00064,000 and Upper R left parenthesis x right parenthesisR(x)equals=1818x.
Click here to see answer by Boreal(15235)

Question 1110246: Twenty ounces of a 40% gold alloy are mixed with 80 oz of a 20% gold alloy. Find the percent concentration of the resulting gold alloy.
Click here to see answer by josgarithmetic(39618)

Question 1110245: Find the cost per pound of a "house blend" of coffee that is made from 20 lb of Central American coffee that costs $8 per pound and 40 lb of South American coffee that costs $3.50 per pound
Click here to see answer by josgarithmetic(39618)

Question 1110248: Find the cost per pound of a "house blend" of coffee that is made from 20 lb of Central American coffee that costs $8 per pound and 40 lb of South American coffee that costs $3.50 per pound.
Click here to see answer by josgarithmetic(39618)

Question 1110249: Find the cost per pound of a "house blend" of coffee that is made from 20 lb of Central American coffee that costs $8 per pound and 40 lb of South American coffee that costs $3.50 per pound.

Click here to see answer by josgarithmetic(39618)

Question 1110381: How much water must be added to 960ml of acid which contains 10% pure acid to obtain a solution containing 8% pure acid?
Click here to see answer by ikleyn(52788)

Question 1110474: how many liter of a 20% alcohol solution should be added to a 450 L solution which contain 35% alcohol so that the resulting mixture will be 30% alcohol.
Click here to see answer by stanbon(75887)

Question 1110527: Fred needs 45 ml of 18% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 40% sucrose solution to get the 18% he wants. How much of each should Fred use?
Click here to see answer by Alan3354(69443)

Question 1110530: Fred needs 45 ml of 18% sucrose solution to do his science experiment. He needs to mix a 15 % sucrose solution with some 40 % sucrose solution to get the 18 % solution he wants. How much of each should Fred use?
Click here to see answer by Alan3354(69443)

Question 1110533: How many liter of a 20% alcohol should be added to a 450L solution, which contains 35% so that the resulting mixture will be 30% alcohol.
Let x = number of liters of the 20% alcohol.
Click here to see answer by Alan3354(69443)

Question 1110535: The radius of a circle is
(x + 2) cm.
Find the area of the circle in terms of the variable x. Leave the answer in terms of π.
Click here to see answer by Alan3354(69443)

Question 1110553: Fred needs 45 ml of 21% sucrose solution to do his science experiment. He needs to mix a 15 % sucrose solution with some 35 % sucrose solution to get the 21 % solution he wants. How much of each should Fred use?
Click here to see answer by josgarithmetic(39618)

Question 1110586: An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 56 grams of an alloy containing 18% copper with 200 grams of an alloy containing 42% copper.
(a)How many grams of copper are in the resulting mixture?
(b)What percentage of the resulting mixture is copper?
Click here to see answer by josgarithmetic(39618)

Question 1110573: Brine containing 4 lbs/gal of salt enters a large tank at the rate of 4 gal/min and the solution well-stirred leaves at 2 gal/min. The tank initially contains 30 gal of water. � Set up an equation determining the amount of salt in the tank at any time t in minutes. � What is the amount of salt in the tank after 10 minutes? � When will there be 170 lbs of salt in the tank?
Click here to see answer by addingup(3677)

Question 1110727: A dairy farmer wants to mix a 80% protein supplement and a standard 20% protein ration to make 1500 pounds of a high-grade 55% protein ration. How many pounds of each should he use?

Click here to see answer by Alan3354(69443)

Question 1110782: A college student mixed 3 Liters of 30% orange juice mixed with 80% orange juice mixture to obtain a 60% orange juice mixture (perfect percentage for his party!). How much of the 80% orange juice mixture did he use?
Click here to see answer by josgarithmetic(39618)

Question 1110904: A scientist has two solutions, which she has labeled Solution A is 45% and Solution B is 95% Each contains salt. She knows that Solution A is salt and Solution B is salt. She wants to obtain 140 ounces of a mixture that is 90% salt. How many ounces of each solution should she use?
Click here to see answer by ikleyn(52788)

Question 1110905: Problem Page A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 45% salt and Solution B is 95% salt. She wants to obtain 140 ounces of a mixture that is 90% salt. How many ounces of each solution should she use?
Click here to see answer by ikleyn(52788)

Question 1110906: A chef plans to mix 1000% vinegar with Italian dressing. The Italian dressing contains 16% vinegar. The chef wants to make 210 milliliters of a mixture that contains 48% vinegar. How much vinegar and how much Italian dressing should she use?
Click here to see answer by ikleyn(52788)

Question 1110986: You need to prepare a 47 mL of a 24% syrup/soda �prescription�. To do this, you can use the 80% syrup solution and the 10% soda solution that you have in stock. How many mL of each solution do you need to create this final solution?
Click here to see answer by ikleyn(52788)

Question 1111016: 1. A crew rowed 7 miles upstream in 2 hours and the 6 1/2 miles downstream in 1 hour. Find the the rate of the crew in still water and the rate of the current.
2. The sum of the reciprocals of two numbers is 7 and the difference of their reciprocals is 3. What are the numbers?
3. In a certain number of two digits, the sum of the digits increased by 3, is twice the unit digit. If the number is divided by the sum of the digits, the quotient is 4 and the remainder is 3. Find the number.
4. How many liters of each of 15% and 40% solutions of alcohol should be mixed to produced 5 liters of 20% solution?
Can i have the appropriate solution of each number.
5. A 6% investment yields in a year P13 less than a 4% investment. The sum of two investments is P1,200. What is the amount of each investment?
6. Five years ago, Dino was 1/5 as old as his father. Thirteen years from now, Dino will be half as old as his father. Find their present ages.
7. Two cars,A and B, 148 kilometers apart, traveled toward each other. A started at 6 a.m while B started an hour later. They met on the road at 9 a.m. Had both of them started at 6 a.m., they would have met at 8:28 a.m. Find the speed of each.
8. If a certain rectangular lot were 3 meters shorter and 2 meters wider, the area would be 7 square meters greater. Find the dimensions of the lot.
9. If 3 is added to the numerator of a fraction, its value becomes 4/9; while, if 2 is added to the denominator and the denominator is doubles, its value becomes 1/2. What is the fraction?
10. Danny and Rennan can do a piece of work in 6 days. How long will it take each of them to finish the work alone, if Danny can work 3/2 as fast as Renan.
Click here to see answer by ikleyn(52788)

Question 1111018: The sum of the reciprocals of two numbers is 7 and the difference of the reciprocals is 3. What are the numbers?
Click here to see answer by mananth(16946)

Question 1111018: The sum of the reciprocals of two numbers is 7 and the difference of the reciprocals is 3. What are the numbers?
Click here to see answer by Theo(13342)

Question 1111018: The sum of the reciprocals of two numbers is 7 and the difference of the reciprocals is 3. What are the numbers?
Click here to see answer by greenestamps(13200)

Question 1111037: A crew rowed 7 miles upstream in 2 hours and the 6 1/2 miles downstream in 1 hour. Find the rate of the crew in still water and the rate of the current.
Click here to see answer by josgarithmetic(39618)

Question 1111038: How many liters of each of 15% and 40% solutions of alcohol should be mixed to produce 5 liters of 20% solution?
Click here to see answer by josgarithmetic(39618)

Question 1111036: In a certain number of two digits, the sum of the digits increased by 3, is twice the unit digit. If the number is divided by the sum of the digits, the quotient is 4 and the remainder is 3. Find the number.
Click here to see answer by mananth(16946)

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