# Questions on Word Problems: Mixtures answered by real tutors!

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 636461: How much 20% antifreeze solution must be mixed with a 80% antifreeze solution to produce 30 gallons of a 60% disinfectant solution? Click here to see answer by Maths68(1474)

 Question 636474: How much of a 5% cream and a 0.5% cream would be required to compound 75 g of a 2% cream? Click here to see answer by Maths68(1474)

 Question 636446: A liquid medicine solution is 13% liquid Curitall by volume. To the nearest mL, how much solution do you need to have 40 mL of pure Curitall? Click here to see answer by ankor@dixie-net.com(15638)

 Question 636538: If glass A has .002 ounces and glass B has .01 ounces and glass C has .0016 ounces, which glass has the most? Click here to see answer by Alan3354(30983)

 Question 637106: A driver averaged 54 miles per hour on the round trip between home and a city 81 miles away. The average speeds for going and returning were x and y miles per hour Find an expression for y in terms of x Click here to see answer by solver91311(16868)

 Question 637105: the cost of producing x units of a product is C=0.4x^2+16x+10 and therefore the average cost per unit is C=C/x=(0.4x^2+16x+10)/x, 0< x Sketch the graph of the average cost function and use it to estimate the number of units that should be produced to minimize the average cost per unit. Click here to see answer by ewatrrr(10682)

 Question 637113: The formula S= C(1+r)^t models inflation, where C the value today, r the annual inflation rate, and S the inflated value years from now. Use this formula to solve the following exercise.If the inflation rate is 5% , how much will a house now worth \$760,000 be worth in 4 years? Click here to see answer by checkley79(3050)

 Question 637133: Calculate how much 10% salt solution and 50% salt solution must be mixed to end up with exactly 20 gallons of a 40% salt solution. Click here to see answer by stanbon(57246)

 Question 637225: Doreen Schmidt is a chemist with Gemco Pharmeceutical. She need o prepare 12 liters of a 9% hydrochloric solution. Find the amount of a 4% solution and the amount of a 12% solution she should mix to get this solution. Click here to see answer by stanbon(57246)

 Question 637157: Calculate how much 20% alcohol solution and 60% alcohol solution must be mixed to end up with exactly 12 gallons of a 50% alcohol solution. You'll need ____ gallons of the 60% solution. Click here to see answer by ankor@dixie-net.com(15638)

 Question 637391: A company makes 2 types of chairs: basic chair and a deluxe chair. In One day the company can make at most 150 chairs total. The company can make at most 100 basic chairs and at most 75 deluxe chairs.The company makes \$12 profit for each basic chair and \$8 profit for each deluxe chair. Let x represent the number of basic chairs made in one day and y represent the number of deluxe chairs made in one day. Use linear programming to determine the maximum possible profit for one day. Show the steps for the linear programming method as requested. Write the system of the inequalities that represent the situation. I could really use help with this problem im not understand AT ALL! Click here to see answer by solver91311(16868)

 Question 637537: Help on this stumper would be greatly appreciated - Daniel mixes a powdered sports drink with cold water. For best taste, the mix should be 96% water. If Daniel has used 16 scoops of powder and added 2 quarts of water, how many gallons of water should he add, given that each scoop is 1/4 cup? Click here to see answer by KMST(1868)

 Question 637708: 9 quarts of a sugar solution was mixed 6 quarts of a 90% sugar solution to make an 84% sugar solution. What is the percent concentration of the first solution? Click here to see answer by ankor@dixie-net.com(15638)

 Question 637707: A metallurgist needs to make 12.4 lbs. of an alloy containing 50% gold. He is going to melt and combine one metal that is 60% gold with another metal that is 40% gold. How much of each should he use? Click here to see answer by ankor@dixie-net.com(15638)

 Question 638026: mixture a is 30 percent suger, 15 percent ciiamon, and the rest flour. Mixture b is 3/4 sugar and 1/4 flour. If we comine 2 cups of mixture a with 5 cups of mixture b and 1 cup of flour, what percent of the resluting mixture will be flour? Click here to see answer by lwsshak3(6472)

 Question 638401: Just show how you got the answer. #6. A textile company has specific dyeing and drying times for its different cloths. A roll of Cloth A requires 65 minutes of dyeing time and 50 minutes of drying time. A roll of Cloth B requires 55 minutes of dyeing time and 30 minutes of drying time. The production division allocates 2440 minutes of dyeing time and 1680 minutes of drying time for the week. How many rolls of each cloth can be dyed and dried? Click here to see answer by stanbon(57246)

 Question 638776: how much of 80% acid must be mixed with 25% acid to produce 396ml of 50% solution? Click here to see answer by ptaylor(2048)

 Question 638821: How many liters of acid should be mixed with 4 L of a 10% acid solution to produce a solution that is 80% acid? Click here to see answer by richwmiller(9135)

 Question 638778: Ig 6 quarts of chemicals go into 110 gals. of water, how many chemicals is in one gallon. Click here to see answer by richwmiller(9135)

 Question 638830: I need 150 gallons of 10% solution but all i have is 5% and 20% solution. How much of the 5% and 20% solution do i need in order ti create 150 gallons of 10% solution? Click here to see answer by Alan3354(30983)

 Question 638841: How many gallons of a plant food that is 6% nitrogen must be combined with another plant food that is 30% nitrogen to make 10 gal of a plant food that is 12% nitrogen? Click here to see answer by Alan3354(30983)

 Question 638972: find the composite number between 20 & 50 whose prime factors have a sum of 21 Click here to see answer by jim_thompson5910(28504)
 Question 638972: find the composite number between 20 & 50 whose prime factors have a sum of 21 Click here to see answer by Edwin McCravy(8882)

 Question 639038: How many liters of a 70% methyl solution should be added to 200 liters of a 20% methyl solution to obtain a 35% methyl solution? Click here to see answer by ptaylor(2048)

 Question 639117: The manual for your new car suggests using gasoline that is 89 octane. In order to save money, you decide to use some 87 octane and some 93 octane in combination with the 89 octane currently in your tank in order to have an approximate 89 octane mixture. Assuming you have 2 gallons of 89 octane remaining in your tank (your tank capacity is 20 gallons), how many gallons of 87 octane should you put in your tank to achieve a mixture of 89 octane? Click here to see answer by solver91311(16868)

 Question 639840: I'm working on chocolate percentages if 70% of the chocolate weighs 80 ounces what does the other 30% weigh? Click here to see answer by richwmiller(9135)

 Question 639943: A bag containing sugar weighs 300 g. Find the least number of such bags which together weigh a whole number of kg. Click here to see answer by Edwin McCravy(8882)

 Question 640097: She wants to split the gasonline up int o small cups that each hold 1 and 12 galloons Click here to see answer by solver91311(16868)

 Question 640216: What quantity of a 40% acid solution must be mixed with a 10% solution to produce 300 quarts of a 30% solution? Click here to see answer by josmiceli(9661)

 Question 640207: I am in college algebra. My problem is: A mechanic finds the car with a 20 quart radiator has a mixture containing 30% antifreeze in it. How much of this mixture would he have to drain out and replace with pure antifreeze to get a 50% antifreeze mixture? Click here to see answer by KMST(1868)

 Question 640349: Mixture Problem. A pot contains 6 L of brine at a concentration of 120 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L? Click here to see answer by Edwin McCravy(8882)

 Question 640393: suppose a chemist has 10% and 15% acid solutions in stock. how much of each should the chemist mix if 100ml of a 12% solution is desired? Click here to see answer by sachi(392)
 Question 640393: suppose a chemist has 10% and 15% acid solutions in stock. how much of each should the chemist mix if 100ml of a 12% solution is desired? Click here to see answer by Earlsdon(6287)

 Question 640432: If 2x - 6 = 4, then what is the value of x? Click here to see answer by Alan3354(30983)
 Question 640432: If 2x - 6 = 4, then what is the value of x? Click here to see answer by lenny460(758)

 Question 640703: Kayla wants to make 16 fl. oz. of a 60% acid solution by mixing together a 80% acid solution and pure water. How much of each solution must she use? Click here to see answer by nerdybill(6951)

 Question 641114: A chemist has three acid solutions. The first contains 20% acid, the second contains 30% acid and the third contains 60% acid. She uses all three solutions to obtain a final mixture of 80 litres containing 40% acid. She uses twice as much of the 60% acid solution as the 20% solution. She wants to find out the number of litres of each solution she would use to obtain the final mixture. Click here to see answer by lwsshak3(6472)

 Question 641149: A pound of tin is worth \$2 more than a pound of copper. Two pounds of tin are mixed with 8 pounds of copper to make bronze that sells for \$3.65 per pound. How much is a pound of tin worth? Click here to see answer by lwsshak3(6472)
 Question 641149: A pound of tin is worth \$2 more than a pound of copper. Two pounds of tin are mixed with 8 pounds of copper to make bronze that sells for \$3.65 per pound. How much is a pound of tin worth? Click here to see answer by josmiceli(9661)

 Question 641137: Suppose a 10-inch pizza costs \$4. For you to find the price x of a 14-inch pizza, is it correct to set up the proportion x/4=14/10? Why or why not? Click here to see answer by josh_jordan(115)

 Question 641405: What quantity of pure acid must be added to 500 mL of a 40% acid solution to produce a 50% acid solution? Click here to see answer by ptaylor(2048)

 Question 641495: A printer has ink that is 14% cobalt blue color and ink that is 26% cobalt blue color. How many ounces of each ink are needed to make 1 gallon (128 ounces) of ink that is 20% cobalt blue color? Click here to see answer by Alan3354(30983)

 Question 641506: Convert the following phrase into a mathematical expression. Use x as the variable, and combine like terms. Six times a number, added to the sum of the number and seven. Click here to see answer by stanbon(57246)

 Question 638213: 6. You receive a prescription written for a topical solution which calls for 45 g to be dispensed. The recipe for the solution is as follows: (How much of each ingredient is needed to produce 45 grams of topical solution?) Betamethasone valerate 121 mg Alcohol (95%) 20 ml Propylene glycol 20 ml Pluronic F127 22 g Purified water qs 100 g Click here to see answer by heidid(1)

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