Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 1180854: You need a 95% alcohol solution. On hand, you have a 15 mL of a 10% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
You will need
(?) mL of pure alcohol
to obtain
(?) mL of the desired 95% solution.
Click here to see answer by josgarithmetic(39616)

Question 1180920: The height of an equilateral triangle is 15cm and its base is 36cm find the area of the triangle
Click here to see answer by MathLover1(20849)

Question 1180920: The height of an equilateral triangle is 15cm and its base is 36cm find the area of the triangle
Click here to see answer by greenestamps(13198)

Question 1180920: The height of an equilateral triangle is 15cm and its base is 36cm find the area of the triangle
Click here to see answer by ikleyn(52776)

Question 1180988: I do not understand how to write the expressions for finding y or how to find the amounts of ingredients in this problem:
Suppose that a nurse needs 14 cc (cubic centimeters) of an 18.5% solution (that is, a solution that is 18.5% ingredient) of a certain medication, which must be obtained by mixing x cc of a 20% solution and y cc of a 9% solution. Write expressions involving x for the following:
y= ____
the amount of ingredient in the x cc of 20% solution_____
the amount of ingredient in the 9% solution ______
the total amount of ingredient in the mixture _______
Click here to see answer by mananth(16946)

Question 1181174: consider two integers.The first number is three more than five times the second number.the difference of the squares of the 2 numbers is 45. Determine the two numbers
Click here to see answer by greenestamps(13198)

Question 1181173: a grocer sells Brazilian coffee at R30 per kilogram and Colombian coffee at R51 per kilogram.calculate how many kilograms of each should he mix to have a blend of 50 kilograms that he can sell at R42.60 per kilogram
Click here to see answer by greenestamps(13198)

Question 1181251: A farmer grows only pumpkins and corn on her 420 -acre farm. This year she wants to plant 250 more acres of corn than pumpkins. How many acres of each crop does the farmer need to plant?
Click here to see answer by ikleyn(52776)

Question 1181335: if you mix 3 liters of can A which contains 10% oil with 6 liters of can B which contains 40% oil, how much oil is in the mixture?
Click here to see answer by ikleyn(52776)

Question 1181583: For his birthday party Ted mixed together 8 gal. of Brand A. Fruit punch and 7 gal. of Brand B. Brand A. contains 40% fruit juice and Brand B. contains 25% fruit juice. What percent of the mixture is fruit juice?
Click here to see answer by josgarithmetic(39616)

Question 1181853: How many gallons of a 7% salt solution must be mixed with 20 gallons of a 13% solution to obtain a 10% solution
Click here to see answer by josgarithmetic(39616)

Question 1181853: How many gallons of a 7% salt solution must be mixed with 20 gallons of a 13% solution to obtain a 10% solution
Click here to see answer by greenestamps(13198)

Question 1181853: How many gallons of a 7% salt solution must be mixed with 20 gallons of a 13% solution to obtain a 10% solution
Click here to see answer by MathTherapy(10551)

Question 1182358: How many ounces of a 40% alcohol solution must be mixed with 12 ounces of a 45% alcohol solution to make a 43% alcohol solution?
Click here to see answer by Boreal(15235)

Question 1182358: How many ounces of a 40% alcohol solution must be mixed with 12 ounces of a 45% alcohol solution to make a 43% alcohol solution?
Click here to see answer by ikleyn(52776)

Question 1182358: How many ounces of a 40% alcohol solution must be mixed with 12 ounces of a 45% alcohol solution to make a 43% alcohol solution?
Click here to see answer by greenestamps(13198)

Question 1182422: A grocery store offers a cheese sampler that includes a pepper cheddar cheese that costs $18 per kilogram and Pennsylvania Jack that costs $8 per kilogram. How many kilograms of each were used to make a 5-kilogram mixture that costs $11.00 per kilogram?
pepper cheddar
kg
Pennsylvania Jack
kg

Click here to see answer by josgarithmetic(39616)

Question 1182454: How many ml of 55% alcohol solution is needed for the preparation of 300 ml of 15% alcohol solution?
Click here to see answer by ikleyn(52776)

Question 1182454: How many ml of 55% alcohol solution is needed for the preparation of 300 ml of 15% alcohol solution?
Click here to see answer by josgarithmetic(39616)

Question 1182654: The area of a window of a car is 85 cm^2 on a drawing having a scale of 1:6. Find the actual window area in square meters.
Click here to see answer by ikleyn(52776)

Question 1182966: An oil refinery refines types 1 and 2 of crude oil and can refine as much as 4000 barrels each week. Type 1 crude has 2 kg of impurities per barrel, type 2 has 3 kg of impurities per barrel,and the refinery can handle no more than 9000 kg of these impurities each week.How much of each type should be refined in order to maximize profits, if the profit is R25/barrel for type 1 and R30/barrel for type 2?
Click here to see answer by Theo(13342)

Question 1183056: You start working in a new laboratory. When you arrive, you find a few vials on the bench. The
description on one vial has been smeared and you cannot make out what the liquid is. The following is
still legible:
The volume is: 50 mL
The concentration is: 1.5 M
The label says: xx g was originally added
The bit you can make out says: XxSO4
What is the sample?
Click here to see answer by ikleyn(52776)

Question 1183247: A company produces product X at a unit cost of N10. If fixed costs are N450, 000, and each unit sells for N25,
how many must be sold for the company to make a positive profit of N510,000.

Click here to see answer by ikleyn(52776)

Question 1183245: A company produces product X at a unit cost of N10. If fixed costs are N450, 000, and each unit sells for N25, how many must be sold for the company to make a positive profit of N510,000.
Click here to see answer by ikleyn(52776)

Question 1183244: To produce 1 unit of a new product, a company determines that the cost for material is N2.50 per unit and the cost of labour is N4 per unit. The constant overhead cost is N5, 000. If the cost to a wholesaler is N7.50 per unit, determine the least number of units that must be sold by the company to realise a positive profit.
Click here to see answer by math_tutor2020(3816)

Question 1183433: A manufacturer has found that if his product is priced at N90/unit then his weekly demand is 50 units, but the demand rises to 60 units per week if the selling price is N70/unit. His weekly fixed cost is N3, 000 and variable cost N20/unit.
Find the level of production which maximizes profit and determine the maximum profit?

Click here to see answer by ikleyn(52776)

Question 1183602: Use Matrices to solve this problem.
Baskets of fruit are prepared for sale at a festival. The basic basket has two apples, two peaches and three mangoes. The deluxe basket has six apples, three peaches and four mangoes. The super deluxe basket has ten apples, five peaches and five mangoes. Altogether there are 420 apples, 310 peaches and 430 mangoes. How many of each type of basket were made up?
Click here to see answer by josgarithmetic(39616)

Question 1183634: (a) For the following relations from the set A = {a, b, c} and the set B = {x, y, z} does the relation satisfy the definition of a function? If yes, state why it is a function and also give the domain, co-domain, and range. If not state which of the function definition conditions are violated. For each relation, you will be required to draw an arrow diagram

(i) The relation that is represented by the ordered pairs (a, x), (b, y).

(ii)The relation that is represented by the ordered pairs (a, y), (b, y), (c, z).

(iii)The relation that is represented by the ordered pairs (a, x), (b, y), (c, z), (a, z).

(b) We now introduce a third set C = {r, s, t)Let the functions f: A right arrow B be defined by the ordered pairs (a, y), (b, x), (c, y), and g: B right arrow C be defined by the ordered pairs (x, s), (y, t), (z, r).

(i) Compute the elements corresponding to the composite function g composite function f: A right arrow C and represent them in an arrow diagram (this will require more than one mapping in the diagram)

(ii)Find the ranges of f, g, and g composite function f.
Click here to see answer by Solver92311(821)

Question 1183705: John buys candy that costs 8 per pound. He will spend at least 88 on candy. What are the possible numbers of pounds he will buy?
Use p for the number of pounds John will buy.
Write your answer as an inequality solved for p.

Click here to see answer by ikleyn(52776)

Question 1184000: From a full 50 liter container of a 40% conentration of acid, x liters is removed and replaced with 100% acid.
- Write the amount of acid in the final mixture as a function of x
--Determine the domain and range of the function.
Thanks!
Click here to see answer by Theo(13342)

Question 1184055: How many milliliters of pure water must a nurse mix with 450ml of a 6% saline solution to lower the solution to 5% saline?
Click here to see answer by ikleyn(52776)

Question 1184102: Doris invested some money at 6% and some money at 7%. She invested $6,000 more at 7% than she did at 6%. Her total yearly interest from the two investments was $680. How much did Doris invest at each rate?
Click here to see answer by greenestamps(13198)

Question 1184101: Suppose that one solution contains 30% alcohol and another solution contains
80% alcohol. How many liters of each solution should be mixed to make 12.5
liters of a 60% alcohol solution?
Click here to see answer by greenestamps(13198)

Question 1184118: How much of a 60% orange juice drink must be mixed with 9 gallons of a 40% orange juice drink to obtain a mixture that is 50% orange juice?
The amount of 60% orange juice drink is x gallons.
(Type an integer or a decimal.)
Please help me find "x" thank you

Click here to see answer by ikleyn(52776)

Question 1184071: A bank loaned out $9,000, part of it at the rate of 12% annual interest, and the rest at 14% annual interest. The total interest earned for both loans was $1,110.00. How much was loaned at each rate?
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