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Question 826348: what percent of acid is in a mixture of 50 liters of water and 20 liters of acid?
Click here to see answer by Alan3354(69443)

Question 826380: I want to make 2 gallons of a drink that is 60% cranberry juice and 40% apple juice. How many gallons of 100% apple juice do I need to mix with an 80% cranberry/20% apple blend to achieve this result?
Click here to see answer by TimothyLamb(4379)

Question 826417: How many ounces of pure zinc must be alloyed with 20 ounces of brass that is 30% zinc and 70% copper to produce brass that is 40% zinc?
Click here to see answer by josgarithmetic(39618)

Question 826421: How many liters each of a 35% acid solution and a 65% acid solution must be used to produce 80 liters of a 50% acid solution.
Click here to see answer by josgarithmetic(39618)

Question 826416: A chemist has a concentrated washing solution. If she has 2 liters of the 50% solution how much water must be added to dilute it to a 20% solution?
Click here to see answer by josgarithmetic(39618)

Question 826469: a solution of 62% alcohol is to be mixed with a solution of 22% alcohol to form 160 liters of a 52% solution.how many liters of the 62% solution must be used
Click here to see answer by josgarithmetic(39618)

Question 826470: Kathy and Gilbert drove a total of 337 miles in 8 hours. Kathy drove the first part of the trip and averaged 35 miles per hour. Gilbert drove the remainder of the trip and averaged 45 miles per hour. For what length of time did Kathy drive?
Click here to see answer by josgarithmetic(39618)

Question 826474: How much water must be mixed with 3 pints of a solution that is 90% developer to produce a mixture that is 17% developer?
Click here to see answer by josgarithmetic(39618)

Question 826473: A solution of 50% pesticide is to be mixed with a solution of 35% pesticide to form 180 liters of a 48% solution. How many liters of the 50% solution must be used?
Click here to see answer by josgarithmetic(39618)

Question 826491: Benjamin has 1 litre of a mixture containing 49% of boric acid. How much water must be added to make the mixture 7% boric acid?
Click here to see answer by josgarithmetic(39618)

Question 826614: How much cream that is 30% butterfat must be mixed with milk that is 3% butterfat to make 45 gal of cream that is 12% butterfat?
Click here to see answer by josgarithmetic(39618)

Question 826639: Coffee worth $3.75 a pound was mixed with coffee worth $4.35 a pound to produce a blend worth $4.11 a pound. How much of each kind of coffee was used to produce 40 pounds of blended coffee?
Click here to see answer by TimothyLamb(4379)

Question 826746: an 18 ounce box of wheat cereal costs $3.60 A 12-ounce box ofoat cereal costs $3.00
what is the unit rate in cost per ounce for the wheat cereal?
Click here to see answer by josgarithmetic(39618)

Question 826741: an 18-ounce box of wheat cereal cost $3.60.A 12-ounce box of oat cereal cost $3.00
Click here to see answer by josgarithmetic(39618)

Question 826814: Donna wants to make trail mix made up of almonds,walnuts and raisins.she wants to mix one part almonds,two parts walnuts,and three parts raisins.almonds cost $12per pound,walnuts cost $9 per pound,and raisins cost $5 per pound.
Donna has $15 to spend on the trail mix.determine how many pounds of trail mix she can make.
Click here to see answer by josgarithmetic(39618)

Question 827034: a 10% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 120 gallons of a 50% solution. How many gallons of the 10% and 70% solution should be mixed?
Click here to see answer by TimothyLamb(4379)

Question 826991: Twenty pounds of lemon drops are to be mixed with cherry chews to make a mixture that will sell for $1.80 per pound. How much of the more expensive candy should be used?
Given Information:
Peppermint Patties= $1.35 price per pound
Lemon Drops= $1.70 price per pound
Licorice lumps= $1.95 price per pound
Cherry Chews= $2.00 price per pound
Click here to see answer by TimothyLamb(4379)

Question 826833: how much heat is required to convert 50g of ice at -10degree celcius to steam at 200degree celcius?
Click here to see answer by KMST(5328)

Question 827139: What amounts of 25\% pure silver and 35\% pure silver should be mixed to obtain 14 grams of 31\% pure silver?
Click here to see answer by josgarithmetic(39618)

Question 827158: What amounts of 50% pure silver and 60% pure silver should be mixed to obtain 14 grams of 58% pure silver?
Click here to see answer by josgarithmetic(39618)

Question 827158: What amounts of 50% pure silver and 60% pure silver should be mixed to obtain 14 grams of 58% pure silver?
Click here to see answer by JBarnum(2146)

Question 827190: HOW MANY TIMES THE VALUE WILL BECOME IF IT IS INCREASED BY 10%

Click here to see answer by Alan3354(69443)

Question 827196: Hello,
It costs 55c for domestic mail within Australia and $2.05 to post a letter to Europe. If I spent $10.00 to post 10 letters, how many of each type did I post?
Could you assist by providing algebra equation?
Thank you,
Bridgit
Click here to see answer by rothauserc(4718)

Question 827286: I have two different solutions of sulfuric acid, one with 75% acid and one with 45% acid. If I want to end up with 250ml of 50% acid solution, how much of each solution do I need to use?
Click here to see answer by stanbon(75887)

Question 827307: we had a math question in or nursing test today
doctor orders:100units/kg weekly
weight: 140 lbs
available: 10000 units/ml
14000 divided by 22000 is 0.636
would you round that to 0.6 ml or 0.64 ml
Click here to see answer by josgarithmetic(39618)

Question 827385: a pharmistist wishes to mix a solution that is 7% minoxidil. she has on hand 70ML of 6% solution and wishes to add 9% to obtain 7% solution. how much 9% solution is needed?
Click here to see answer by josgarithmetic(39618)

Question 827394: 40 lb is what percent of 75 lb

Click here to see answer by rfer(16322)

Question 827351: How many gallons of a 80% acid solution must be mixed with 50 gallons of a 16% solution to obtain a solution that is 70% acid?
Click here to see answer by TimothyLamb(4379)

Question 827264: I have 6 oz of paint that needs to have thinning solution added to it. It is reccommended I add 20 percent thinner by volume. How many oz of thinner should I add to the 6 oz of paint ? Thankyou I would really like to know how to calculate this as the second coat of paint requires i thin it by 33 percent.
Click here to see answer by ankor@dixie-net.com(22740)

Question 827520: If 100 students took a test, the class average was 76%. The girls averaged 70% and the boys averaged 80% how many girls participated in the test
Click here to see answer by TimothyLamb(4379)

Question 827867: You are making an acid solution in science class. Five liters of the 40% acid solution are obtained by mixing a 20% solution with a 60% solution. How much of each must you use?
Click here to see answer by Alan3354(69443)

Question 827971: Pecans cost 1.60 a pound and walnuts cost 2.40 per pound. Brad wants to make 8 pounds of a pecan-walnut mixture that costs 2.20 per pound. How many pounds of pecans and walnuts should he use?
Click here to see answer by josgarithmetic(39618)

Question 828175: In a chemistry class, 3 liters of a 4% silver iodine solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed.
I have compleatly forgot how to do problems like this, so if you could run me through the process, and not just give me the answer, it would help so much.
Click here to see answer by TimothyLamb(4379)

Question 828186: In a mixture of concrete, there are 4 lbs of cement mix. If the mixture contains a total of 250 lbs of these two ingredients, how many pounds of gravel are there?
Click here to see answer by josgarithmetic(39618)

Question 828194: Without solving, explain what is wrong with the following mixture problem: How many gallons of 30% antifreeze should be added to 25 gallons of 40% antifreeze to obtain a solution of 45% antifreeze? Now go through an algebraic solution. What happens?

Click here to see answer by josgarithmetic(39618)

Question 828211: What is 7% of one gallon
Click here to see answer by josmiceli(19441)

Question 828309: I need to make a 6% solution from a 22% solution.
How do I do this?

Click here to see answer by TimothyLamb(4379)

Question 828360: if im making 30$ per week and recive a 5% raise how much will i make
Click here to see answer by TimothyLamb(4379)

Question 828379: An automobile radiator contains 10 qt of a mixture of water and antifreeze that is 20% antifreeze. How much of this mixture must be drained out and replaced with pure antifreeze in order to obtain a 50% mixture in the radiator?
Click here to see answer by TimothyLamb(4379)

Question 828404: a grocer sells one grade of ground beef at $3.95 per pound and another grade at $4.20 per pound. He wants to mix the two grades in order to obtain a mixture that sells for $4.15 per pound. What percentage of each grade should be used?
Click here to see answer by josgarithmetic(39618)

Question 828452: tickets at a concert cost $8 for section A and $4.25 for section B. In total 4500 tickets were sold worth $30000. How many of each type of ticket were sold?
Click here to see answer by jim_thompson5910(35256)

Question 828475: 1. How many grams of water must be evaporated from 10 kg of a 60% salt solution to produce a 50% salt solution?
2. An alloy which weighs 118 kilograms is 10% silver. How much silver must be added to produce a metal that is 25% silver?
Click here to see answer by josgarithmetic(39618)

Question 828706: How many liters of a 20% solution of a chemical should be mixed with 15L of a 50% solution to get a 30% mixture?
Click here to see answer by TimothyLamb(4379)

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