Questions on Word Problems: Mixtures answered by real tutors!

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Question 817142: You have 7 quarts of fruit punch. How many gallons of punch do you have?
Click here to see answer by oligam89(5)

Question 817303: pipe 1 can fill tank in 4 hours time. pipes 1 and 2 together can fill it in 3 hours. pipes 2 and 3 can fill it in 4 hours. how much time would pipe 2 alonr and how much time would pipe 3 alonr require to fill the tank
Click here to see answer by TimothyLamb(4379)

Question 817377: How many liters each of 35% and 60% alcohol solutions must be mixed together to make 40 liters of a 53% alcohol solution?
Click here to see answer by ewatrrr(24785)

Question 817404: Pure acid is to be added to a 10% acid solution to obtain 90L on 20% solution. What amounts of each should be used?
How many liters of 100% pur acid should be used?
H0w many liters of the 10% soultion should be in the mixture?
Click here to see answer by josgarithmetic(39617)

Question 817395: How many liters of 50% antiseptic solution must be added to 4 liters of a 20% solution in order to get a 30% antiseptic solution
Click here to see answer by josgarithmetic(39617)

Question 817554: Which is better 14 oz for 1.65 or 20 oz for 2.19
Click here to see answer by TimothyLamb(4379)

Question 817266: how many liters of water must be added to 35 liters of 89 % hydrochloric acid solution to reduce its strength to 75%
Click here to see answer by ankor@dixie-net.com(22740)

Question 817594: A pharmaceutical firm developed a new vaccine that costs $8.00 per milliliter to produce. How much it cost the firm to produce 1 liter of the vaccine?
The firm must pay $ for a liter of vaccine
Click here to see answer by TimothyLamb(4379)

Question 817740: If mary can drink a whole bottle of wine in 2 hours, and her friend jessica can drink a whole bottle of wine in 3 hours. How long will it take them to drink one bottle of wine together.
Click here to see answer by Theo(13342)

Question 817785: A tank contains 30litres more water when it is 50% full than when it is 40%full. what is the capacity of the tank?
A)60 litres
B)75 litres
c)300 litres
d)400 litres

Click here to see answer by rfer(16322)

Question 817774: A chemist needs 2 liters of 14% solution. He has 10% solution and a 20% solution to form this mixture. How much of each should he use to get the mixture?
I have already found that he needs 0.8 liters of the 20% solution, I can't seem to get the first one. Thank you!
Click here to see answer by rothauserc(4718)

Question 818237: what is the relationship between the diameter and the circumference of the circle

Click here to see answer by ewatrrr(24785)

Question 818244: How many mililiters of a 10% HCl solution and a 30% HCl solution should be mixed to make 200 mililiters of a 15% HCl solution? Hurry! I have to go to class soon! Thanks for the help!
Click here to see answer by rothauserc(4718)

Question 818280: Nicolas works in a lab. He needs a 15% acid solution for a certain test, but the supplier only ships a 10% solution and a 30% solution. He needs 10 liters of the 15% acid solution. How many liters of 10% solution and 30% solution should he use?
Click here to see answer by TimothyLamb(4379)

Question 818362: Hi!
I am a little lost with the problem " how many gallons of pure antifreeze must be mixed with 30 gallons of 15% antifreeze to get a mixture that is 40% antifreeze"
So far I have multiplied 30 x .15 to get 4.5 gallons of pure antifreeze but am not sure where to go after that.
Thanks!
Rachel
Click here to see answer by stanbon(75887)

Question 818591: [ how many liters of a 40% alcohol solution must be mixed with 60 liters of a 70% solution to get a 50% solution? ]

Click here to see answer by TimothyLamb(4379)

Question 818621: how much of an alloy that is 30 copper should be mixed with 100 ounces that is 70% copper in order to get an alloy that is 50% copper
Click here to see answer by TimothyLamb(4379)

Question 818669: A 150 mL solution of alcohol in water is 75% alcohol. How many mL of a 60% solution should be added to make the solution 72% alcohol?
Click here to see answer by TimothyLamb(4379)

Question 818689: It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 50 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
Click here to see answer by TimothyLamb(4379)

Question 818746: how much water should be added to 60 litres of milk containing 20% cream in order to get milk containing 15% cream

Click here to see answer by TimothyLamb(4379)

Question 818746: how much water should be added to 60 litres of milk containing 20% cream in order to get milk containing 15% cream

Click here to see answer by mananth(16946)

Question 818796: 40% of x is 10,than what is x

Click here to see answer by TimothyLamb(4379)

Question 818791: A man has 10 gallons of a 50% sulphuric acid mixture, and 20 gallons of a 20% solution, and 5 gallons of a 10% solution. He wants to use up all the 10% solution and make 15 gallons of 30% solution. How much of each solution should he use?
Click here to see answer by TimothyLamb(4379)

Question 818853: The lab manager at a university needs to mix 10% ethanol solution with a 60% ethanol solution to obtain 50 milliliters of a 50% ethanol solution. How milliliters of the 10% solution and of the 60% solution should be mixed?
Click here to see answer by stanbon(75887)

Question 818900: Josh's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Josh per pound, and type B coffee costs per pound. This month, Josh made pounds of the blend, for a total cost of . How many pounds of type A coffee did he use?
Click here to see answer by josgarithmetic(39617)

Question 818884: how many milliliters of a 25% solution can be prepared from 750ml of a 65% solution?
Click here to see answer by jsmallt9(3758)

Question 819020: A chemist has 100 liters of 30% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution.
a) How much of this solution should she drain and replace with 80% sodium chloride if she wants a 55% sodium chloride solution?
Click here to see answer by josgarithmetic(39617)

Question 819041: A chemist has 100 liters of 20% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution.
a) How much of this solution should she drain and replace with 70% sodium chloride if she wants a 35% sodium chloride solution?
Click here to see answer by TimothyLamb(4379)

Question 819046: Hi,
I'm having a hard time with this problem.
Sarah is painting her dining room white and her living room blue. SHe spends a total of $132 on 5 cans of paint. The white paint costs $24 per can and the blue paint costs $28 per can. How many cans of each kind of paint did Sarah buy?
I'm pretty sure the equation is 132=24x+28y but I need to identify the variable, and that would make two.
Thanks
Click here to see answer by josgarithmetic(39617)

Question 819226: how much alcohol should be added to 1 liter of a 30% alcohol solution to get a 50% solution?
Click here to see answer by richwmiller(17219)

Question 818905: The Eiffel Tower is 497 feet taller than the Washington Monument. If each of the monuments were 58 feet shorter, the Eiffel Tower would be twice as tall as the Washington Monument. How tall is each?
Click here to see answer by richwmiller(17219)

Question 819030: A chemist has 100 liters of 20% sodium chloride solution. She intends to drain a certain number of liters and replace with a more concentrated solution.
a) How much of this solution should she drain and replace with 70% sodium chloride if she wants a 35% sodium chloride solution?
Click here to see answer by richwmiller(17219)

Question 818657:
Second Question :
The company spent $247000 to develop its process for manufacturing the DVDs .
The company spends an additional $1.25 to manufacture each DVD
Which function represents the average total cost per DVD , y , for the company to manufacture x total DVDs
a). y=x/1.25x
b). y=1.25x/x
c). y= x/1.25+247000
d). y= 1.25+247000/x
Click here to see answer by richwmiller(17219)

Question 818481: You need a 80% acid solution. You have 110 mL of 25% on hand. How much of a 90% acid solution should you add to obtain the desired solution?
Click here to see answer by richwmiller(17219)

Question 818655: A chemist has a 24L solution that is currently 8% sodium. How much of a second solution, that happens to be 32% sodium, should be added to the first solution in order to make a new solution that is 20% sodium?
Click here to see answer by richwmiller(17219)

Question 816449: 25 tonnes of mixture, has 18% H2O. How many gallons of H2O, to make mixture 50% H2O?
Click here to see answer by richwmiller(17219)

Question 819270: How many liters of pure alcohol must be added to 20 liters of a 30% solution to obtain an 80% solution?
Click here to see answer by TimothyLamb(4379)

Question 819276: The kiwi juice comes in two concentrated
forms, 13% an 30% kiwi juice, which must
be combined into a solution that can be
mixed with the orange juice. If 40 gallons
of 13% juice is used, how many gallons of
the 30% juice must be used to obtain a
20% kiwi juice solution?
Click here to see answer by TimothyLamb(4379)

Question 819340: ......................................................................
A man has 10 gallons of a 50% sulphuric acid mixture, and 20 gallons of a 20% solution, and 5 gallons of a 10% solution. He wants to use up all the 10% solution and make 15 gallons of 30% solution. How much of each solution should he use?
Click here to see answer by stanbon(75887)

Question 819432: How much 12% indicator solution needs to be mixed with 16% indicator solution to het 10 gal of 14% solution?
Click here to see answer by TimothyLamb(4379)

Question 819529: I have a solution mixture of say A and B. The weight is 47kg with a solution strength of 54% of A. How much of B do I need to add in Kg to bring the mixture to a 50% solution?
Click here to see answer by josgarithmetic(39617)

Question 819760: A chemist has to make 80 liters of a 15.5% alcohol solution by mixing a 32% alcohol solution and a 10% alcohol solution. How many liters of each are mixed to obtain the 15.5% alcohol solution?
Click here to see answer by TimothyLamb(4379)

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