Questions on Word Problems: Mixtures answered by real tutors!

Tutors Answer Your Questions about Mixture Word Problems (FREE)

Question 633433: How many kilograms of water must be evaporated from 50kg of 3% solutioN of salt so that the remaining portioN maybe 5% soluTioN?
Click here to see answer by richwmiller(17219)

Question 633450: D�Andre wants 14 L of fruit punch that is 10% juice. At the store, he finds only punch that is 15% juice or punch that is 8% juice. How much of each should he purchase?
I've tried it a couple different ways , but when I recheck it, the numbers don't add up. I'm taking intermediate algebra online and it has been 20 years since I had it. Please help.
Click here to see answer by ewatrrr(24785)

Question 633535: You are asked to mix up some disinfectant. The solution will be 10% disinfectant concentrate and the rest will be water. If the container is 20 ounces, how many ounces of disinfectant concentrate would you use to make the cleaning solution?
Click here to see answer by richwmiller(17219)

Question 633935: Classify the following variable as nominal, ordinal, discrete, or continuous and state why it is such a variable:
number of US Senators
This is what I think is the answer but please claraify if I am correct, thank you.
Discrete: the values of the variable may be found by counting and can be assigned numbers such as the number of U.S. Senators.
Discrete is a quantitative variable because it is countable and can be assigned values, such as numbers or height and weight or number for each U.S. senators
Click here to see answer by solver91311(24713)

Question 633942: How many mL of acid must be added to 50mL of a 10% acid solution in order to produce a 20% acid solution?
Click here to see answer by Maths68(1474)

Question 633939: A chemist mixes 10L of a solution that is 30% acid with 30L of a solution that is 50% acid. What is the percent of acid in the new mixture?
Click here to see answer by Maths68(1474)

Question 633555: A chemist is making 200 L of a solution that is 62% acid. He is mixing an 80% acid solution with a 30% acid solution. How much of the 80% acid solution will he use?

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Question 632950: write a system of two equation and use them to solve the following problem: two farmers were discussing how many chickens and cows they would purchase at market. the first farmer says to the second, " I have just purchased 30 new heads and 100 feet." how many chicken and how many cows did the farmer purchase.
Click here to see answer by Maths68(1474)

Question 631713: please help me solve this mixture problem. Thanks!
Maricar has a solution that is 60% alcohol and another solution that is 60% alcohol. If maricar wants 12 gallons of a solution that is 45% alcohol, how many gallons of the 40% solution and of the 60% solution should be mix together to obtain her 45% solution?
Click here to see answer by Maths68(1474)

Question 634039: 48. MIXTURE PROBLEM. A pot contains 6L of brine at a concentration of 120g/L. How much of the water should be boiled off to increase the concentration to 200g/L?
Click here to see answer by Edwin McCravy(20055)

Question 634089: How many liters of a 60 percent acid solution must bve added to 10 liters of 40 percent solution to make a 50 percent acid solution?
Click here to see answer by Alan3354(69443)

Question 634177: I need an equation for finding the unknown mass to add a substance to a solution, when you have a target concentration.
Ex: I have a solution that weighs 12.0 grams on a balance and I need to know how much mass of a substance to add that nets me 24% by weight of that additional substance in the final solution. (assume sg is =1.0). I am not looking for specifics in molarity or molality.
Click here to see answer by richwmiller(17219)

Question 634167: Tom and Jerry have to sort and organize all the nails on their father's workbench. Tom can sort 220 nails in 2 hours. Jerry can sort 150 nails in 3 hours. How long will it take them to sort 500 nails if they work together (round to the nearest hundredth)?
Click here to see answer by ankor@dixie-net.com(22740)

Question 634431: I have a word problem. I need help setting up the equation for problem.
110 rail cars make up a train. 75 rail cars are loaded with an average of 11.6% protein per car. What percent protein needs to be loaded on the remaining 35 cars to make the whole 110 car train 12% protein?
Thanks: Jon from Oklahoma
Click here to see answer by lwsshak3(11628)

Question 634557: Helloooo~ Can you help me with these problem? :)
How many ounces of pure silver should be added to 180 ounces, 75% pure, to obtain a mixture of 80% pure?
Thaaaank yoou in advance. Good day! :)
Click here to see answer by ptaylor(2198)

Question 634595: IF A BAF OF PEANUTS COST $3 AND A BAG OF PISTACHIOS COST$5 HAOW MANY BAGS OF PEANUTS AND PISTACHIO MIX WOULD IT TAKE TO MAKE 10 BAGS FOR $10 EACH

Click here to see answer by stanbon(75887)

Question 635018: You have 15L of 24% acid solution. How much water should you add to dilute the solution so that it is 8% acid.
Click here to see answer by richwmiller(17219)

Question 635070: two silver alloys contain 40% and 30% silver. how many kilograms of each alloy should be mixed to obtain 20 kilograms of 36% SILVER ALLOY?
Click here to see answer by mananth(16946)

Question 635197: My friend and i are heading to board a plane. My friend rides on an escalator while i walk along side the escalator. If my friend is travelling at 6 miles per hour while i am walking at 4 miles per hour. How far (approximately) will my friend be ahead of me after 20 minutes?
Click here to see answer by richwmiller(17219)

Question 635215: The number of dollars John is paid for each hour that he works is an odd integer. If he is paid 50 dollars, which is a possible number of hours he worked?
Click here to see answer by solver91311(24713)

Question 635224: How many mg of salt do you need to make a solution of 3ml, if you need 1gm of salt to make a solution of 2ml? Pls, show full working...thanks
Click here to see answer by solver91311(24713)

Question 635223: My friend and i are heading to board a plane. My friend rides ao an escalator while i walk alongside the escalator. If my friend is travelling at 6miles per hour while i am walking at 4 miles per hour. How far (approximately) will my friend be ahead of me after 2o minutes? Pls, show full working so i can understand it. Thanks
Click here to see answer by solver91311(24713)

Question 635235: A piece of wire 25ft long in cut into pieces of different lengths. All pieces are either 3, 4 or 5 ft long. If you cut 2 pieces of 5 ft, how many pieces of 3 and 4 ft can you get?..No left over after cutting
Click here to see answer by checkley79(3341)

Question 635359: A 20-gallon salt-water solution contains 15% pure salt. How much water should be added to make a new solution that is only 12% salt?
Click here to see answer by mananth(16946)

Question 635628: consider a linear function y=a+bx if f(2)=-5 f(7)=10 what is f(-4)?
Click here to see answer by solver91311(24713)

Question 635595: How many gallons of milk containing 4% butterfat must be mixed with 80 gallons of 1% milk to obtain 2% milk?
I'm having trouble figuring out how to set up mixture problems, so please work it out step-by-step with detailed instructions.
Click here to see answer by mananth(16946)

Question 635659: a university has 25000 students:0.1% of these students are majoring in math. how many math majors are there at the university
Click here to see answer by Kasandra24(4)

Question 635813: 60 ml of solution A is mixed with 120 ml of solution B to produce solution C which contains 8% of pure acid. If 80 ml of solution A is mixed with 40 ml of solution B, a solution D containing 10% of pure acid can be produced. Find the percentage of pure acid in solution A.
Click here to see answer by lwsshak3(11628)

Question 635848: How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 635958: The serving size of a popular orange drink is 12 oz. If the drink contains only 0.6 oz of orange juice, what percent of the drink is actually orange juice?
Click here to see answer by jim_thompson5910(35256)

Question 636145: 7/9.1
Click here to see answer by Tatiana_Stebko(1539)

Question 636145: 7/9.1
Click here to see answer by jim_thompson5910(35256)

Question 636298: You are required to mix up 5000 US gals 10% w/w of sulphuric acid solution
(a) How much concentrated sulphuric acid do you need (US gals)
How much Water (US gals)
(c) You want to decant the concentrated acid from drums into a tank, when first setting up on location so that you can pump it out using flowmeters �on the fly�.
The yard has a 4000 gal fibreglass-lined acid tank or a 10 bbl carbon steel tank available �. or you may have to rent a 2000 gal stainless steel vessel from the competition at a premium rate.
What tank should you use.
Data: Conc sulphuric acid available is 98% strength, with an SG of 1.84.
10% sulphuric acid solution has a SG of 1.05.

Click here to see answer by Alan3354(69443)

Question 636323: I have on hand 98% alcohol. How much sterile water do I need to add to arrive at a solution of 20%.
Click here to see answer by ptaylor(2198)

Question 635466: a certin alloy is 3% silver and 40% copper, what percent is silver if the alloy is 75 ounces?
Click here to see answer by sachi(548)

Question 636254: A solution of 61% bleach is to be mixed with a solution of 27% bleach to make 68 gallons of a 44% solution. How many gallons of each should be used?

Click here to see answer by Maths68(1474)

Question 636366: Prepare 240 g of 3.5% sulfate ointment using a 2% ointment and a 4% ointment.
Click here to see answer by Alan3354(69443)

Question 636426: A liquid medicine solution is 1% 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 ptaylor(2198)

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(22740)

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