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Question 521493: You need a 95% alcohol solution. On hand, you have a 60 mL of a 15% 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 richwmiller(17219)

Question 521559: Find how many quarts of 5% milk and 1% milk should be mixed to yield 80 quarts of 4% milk
Click here to see answer by richwmiller(17219)

Question 521562: 1. How much of 30% HCL solution and 45% HCL solution should be combined together to obtain 30 liters of 40% HCL solution?
Click here to see answer by richwmiller(17219)

Question 521982: A photographer wishes to mix 5 liters of 4% acetic acid solution with a 8% solution to get a 7% solution. How many liters of 8% solution must be added?
Click here to see answer by stanbon(75887)

Question 522086: A chemist has one solution that is 20% alcohol and another that is 60% alcohol. how much of each solution should the chemist use to get 100 ml of solution that is 52% alcohol?
Click here to see answer by richwmiller(17219)

Question 522145: You need a 85% alcohol solution. On hand, you have a 90 mL of a 25% 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 85% solution.
Click here to see answer by mananth(16946)

Question 522149: You need a 40% alcohol solution. On hand, you have a 650 mL of a 20% alcohol mixture. You also have 90% alcohol mixture. How much of the 90% mixture will you need to add to obtain the desired solution?
You will need
mL of the 90% solution
to obtain
mL of the desired 40% solution.
Click here to see answer by mananth(16946)

Question 522212: How many cups of does it take to get 14 gallons of water
Click here to see answer by solver91311(24713)

Question 522326: A butcher has some hamburger that is 19% fat and some that is 12% fat. How many pounds of each should be mixed to make 77 lb of hamburger that is 14% fat?
19% fat?
12% fat?

Click here to see answer by solver91311(24713)

Question 522340: How much 40% disinfectant solution must be mixed with a 80% disinfectant solution to produce 25 gallons of a 56% disinfectant solution?
Click here to see answer by richwmiller(17219)

Question 522381: Hello I am trying to figure out how to write this equation in my sons homework I worked the answer in my head 150 but need help showing the work thanks.
David and Amrita had an equal number of marbles. After Amrita gave 50 marbles to David, he had 5 times as many marbles as her. Find the total number of marbles they had.
Click here to see answer by Alan3354(69443)

Question 522364: A silversmith combined pure silver that cost $15.40 per ounce with 60 oz of a silver alloy that cost $15.20 per ounce. How many ounces of pure silver were used to make an alloy of silver costing $15.30 per ounce?
Click here to see answer by richwmiller(17219)

Question 522358: Find the cost per ounce of a sunscreen made from 130 oz of lotion that cost $3.47 per ounce and 60 oz of lotion that cost $14.68 per ounce.

Click here to see answer by richwmiller(17219)

Question 522537: Please help me with this question...(How much pure acid shoud be mixed with 2 gallons of an 80% acid solution in order to get a 90% acid solution?)
Click here to see answer by ankor@dixie-net.com(22740)

Question 522566: 1 pound of peanuts cost $2.80 and 1 pound of cashews cost $5.30. 1 pound of mixed nuts cost $3.30. How many pounds of peanuts does it take to make 100 pounds of mixed nuts?
Click here to see answer by mananth(16946)

Question 522645: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is salt and Solution B is salt. She wants to obtain ounces of a mixture that is salt. How many ounces of each solution should she use?
Click here to see answer by Maths68(1474)

Question 522633: I do not know how to complete this table and I need some help.
The important info is: A chemist has one solution of citric acid that is 20% acid and another solution of citric acid that is 80% acid. She plans to mix these solutions together to make 200 liters of a solution that is 50% acid.
And the question is: Complete the table to show the liters of 20% and 80% solutions that will be used to make the 50% solution. Use x to represent the number of liters of the 80% solution that will be used to make the 50% solution.
Liters of Solution Liters of Acid
20% Solution
80% Solution x
50% Solution 200 0.50(200)

Click here to see answer by mananth(16946)

Question 522658: There were 510 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receits were $930. How many adults and children attended.
Click here to see answer by mananth(16946)

Question 522656: Problem: Coffee Brand A =8.00 per pound. Brand B =5.00 per pound. The two brands mixed together = 6.00 per pound. How many pounds of Brand A will be needed to make a blend of a total of 50 pounds?
Click here to see answer by mananth(16946)

Question 522737: how do i find the equation of the parabola, y=ax^2+bx+c, that passes through the following three points : (-2,40),(1,7),(3,15)?
Click here to see answer by stanbon(75887)

Question 522737: how do i find the equation of the parabola, y=ax^2+bx+c, that passes through the following three points : (-2,40),(1,7),(3,15)?
Click here to see answer by Alan3354(69443)

Question 522739: Billy's restaurant ordered 200 flowers for Mother's Day. They ordered carnations at $1.50 each, roses at $5.75 each, and daisies at $2.60 each. they ordered mostly carnations, and 20 fewer roses than daisies. the total order came to $589.50. How do i find out how many of each type of flower was ordered?
Click here to see answer by stanbon(75887)

Question 523018: please help me answer this question a computer operator types 3600 words in an hour.How many words does she type in a minutes
Click here to see answer by stanbon(75887)

Question 523298: A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25%
Click here to see answer by stanbon(75887)

Question 523301: question: a bag of cashews cost $6.05. there are 4 dozen in each bag. what would the cost of 5 dozen be if the rate is the same?
Click here to see answer by stanbon(75887)

Question 523314: a coffee company wants a new flavor of Cajun coffee. How many pounds of coffee worth $10 a pound should be added to 30 pounds of coffee worth $3 a pound to get a mixture worth $5 a pound?
Click here to see answer by nerdybill(7384)

Question 523540: how many gallons of solution can be made from a one quart container of seaweed extract? how do you know?
Click here to see answer by Alan3354(69443)

Question 523532: Question: How much of a 50% acid solution must be mixed with 80 gallons of a 14% acid solution to obtain a solution that is 40% acid?
Answer Options: A. 11.2gal C.112gal
B.208gal D.None of these<----wrong answer(known)
Tried: .5x+80(.14)=.40
.14+.40=.5x
Click here to see answer by ankor@dixie-net.com(22740)

Question 523782: two red,five white,three blue.return the first marble and choose again.find p(red and blue)
Click here to see answer by edjones(8007)

Question 523845: The farmhand is preparing feed for the animals. He wants to mix the contents of a bag containing 50% corn with one containing 90% corn to obtain a 30-pound bag containing 80% corn. How many pounds of the 50% bag should he use?
I don't really need help solving the equation as much as I need help so I know how to write out the equation. I have looked on many websites and in my textbook, but I cant seem to find a similar problem I can snatch the equation from.

Click here to see answer by Maths68(1474)

Question 524004: A health food store sells oatmeal for $3.60 per pound and bran flakes for $4.80 per pound. How many pounds of each should be used to get a mixture of 30 pounds that sells for $4.00 a pound?
Click here to see answer by Edwin McCravy(20056)

Question 524076: a clerk cut a rope into 8 pieces of equal length. If each piece is 3 and1/2 feet long, how long was the rope before it was cut?
Click here to see answer by oberobic(2304)

Question 524120: 2m3 of soil containing 35% sand was mixed into 6m3 of soil containing 15% sand.What is the sand content of the mixture?
Click here to see answer by oberobic(2304)

Question 524137: THE AMOUNT OF A 12% SALINE SOLUTION A LAB ASSISSTANT SHOULD ADD TO 80CC OF A 22% SALINE SOLUTION IN ORDER TO HAVE A 16% SOLUTION
Click here to see answer by mananth(16946)

Question 524168: how much 2% milk and 9% whipping cream need to be mixed to make 35 gallons of 4% milk?
Click here to see answer by stanbon(75887)

Question 524385: How many liters of each of a 10% acid solution and a 25% acid solution must be used to produce 60 liters of a 15% acid solution?
Click here to see answer by stanbon(75887)

Question 525282: keil is going to mke 10 pounds of mixed nuts for a party. If Keil can spend $47.50 on nuts and peanuts cost $2.00 per pound and fancey nuts cost 7.50 per pound, how many pounds of each should he buy?
Click here to see answer by oberobic(2304)

Question 525635: Ten pounds of $1.20 per pound dog food is
mixed with x pounds of $0.60 per pound dog
food. The value, in cents, of the resulting
mixture may be represented by

Click here to see answer by stanbon(75887)

Question 525770: How many liters of a 20% alcohol solution must be mixed with 60 liters of a 90% solution to get a 70% solution?
Click here to see answer by josmiceli(19441)

Question 525764: How many ounces of pure chocolate added to 120 oz of chocolate topping that is 50% chocolate to make a topping that is 75% chocolate?
Click here to see answer by sweetlove0206(3)

Question 526091: How many litres of fuel costing $ 1.15 per litre must be mixed with 20 litres of fuel costing $ 0.85 per litre to obtain a mixture costing $ 1 per litre.
Click here to see answer by Maths68(1474)

Question 526457: a candy mix is to be made by mixing candy worth $12 per kilogram with candy worth $15 per kilogram to get 120 kilograms of a mixture worth $13 per kilogram. How many kilograms of each should be used ?
Click here to see answer by josmiceli(19441)

Question 526663: How many gallons of 70% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture of that is 60% antifreeze?
Click here to see answer by oberobic(2304)

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