Questions on Word Problems: Mixtures answered by real tutors!

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Question 741639: how much coffee consisting 75 pesos per 100 grams should be added to 250 grams of coffee costing 250 pesos in order to produce 80 pesos per 100 grams
Click here to see answer by josgarithmetic(39616)

Question 741937: Any help would be greatly appreciated.... thank you
Together, Paul and Quincy weigh 364 pounds, Quincy and Ramon weigh 354 pounds, and Paul and Ramon weigh 352 pounds. How much does each weigh individually?
Click here to see answer by stanbon(75887)

Question 741912: How many pounds of a metal containing 35% nickel would be needed to melt and mix with another metal containing 65% nickel to get 50 pounds of a metal containing 50% nickel?
Click here to see answer by richwmiller(17219)

Question 741854: Bill has $1500 to invst. a risky plan hopes to pay 12% and a safer plan expect to earn 8%. How much should he invest in each to earn $152?
Click here to see answer by richwmiller(17219)

Question 742036: a chemist wants to obtain 80 liters of a solution that is 12% hydrochloric acid. how many liters of 10% and 20% hydrochloric acid solutions should he mix to do so?
Click here to see answer by stanbon(75887)

Question 742077: mint candies normally cost 75 pesos per kilogram(p/kg),
are mixed with coffee candies which normally cost 80 p/kg to form a mixture of candies that cost 78 p/kg.
if there are 10 kg of the mixture, how many kg of mint candies were used?
Click here to see answer by josgarithmetic(39616)

Question 742226: If you have 500 ml of 28% salt-solution, how many milliliters of it should you mix with water in order to create 250 ml of a 17% salt-solution? I know that there is 140 salt in the 500 ml mixture and we need 42.5 salt in the final 250 ml mixture but I am unsure of how to set up the ratio problem
Click here to see answer by rothauserc(4718)

Question 742503: betty prepares a mixture of nuts that has cashews and peanuts in a ratio of 3 to 7. how many pounds of each will she need to make 40 lb of the mixture?
Click here to see answer by josgarithmetic(39616)

Question 2042: In a team of 12 persons, 1/3 are women and 2/3 are men. To obtain a
team with 20% women how many men should be hired?

Click here to see answer by melzaren(3)

Question 742848: please i really need help on this mixture problem! i have tried but couldn't get the starting equation. here is the question:a banker has 10 pound bags full of coins. one bag is 70% pennies and the other is 30% pennies. how many pounds from each bag must the banker mix to get a 15 pound bag with 40% pennies?
Click here to see answer by stanbon(75887)

Question 5363: I believe this is a mixture problem, but I am stuck at setting it up (formula). Can you please help me! Here is the question: How many ounces of pure water must be added to 60 oz of a solution that is 20% water to make a solution that is 30% water? I know this is not set up right.
Amount . rate = Quantity
Pure H20 x .30 .20x
60 oz. .20
Click here to see answer by melzaren(3)

Question 742877: a pharmacist has 10% and 30% alcohol solutions instock. to prepare 200mL of 25% solution how much should a pharmacist mix?
Click here to see answer by josmiceli(19441)

Question 742941: how much 10% acid solution should be added to 30 liters of 25% acid solution to achieve a 15% solution?
Click here to see answer by stanbon(75887)

Question 743226: An herbalist has 40 oz of herbs costing $3 per ounce. How many ounces of herbs costing $2 per ounce should be mixed with these 40 oz of herbs to produce a mixture costing $2.50 per ounce?
Click here to see answer by stanbon(75887)

Question 743310: I need to make a 20% HCL solution from 32% HCL into 2 litres water
Click here to see answer by stanbon(75887)

Question 743366: A chemist needs 6 gallons of 88% gas by mixing 87% gas and 93% gas.
how many gallons of each type of gas does he need?
Click here to see answer by josgarithmetic(39616)

Question 743451: a 25% brine solution was mixed with an 18% brine solution to produce a 20% brine solution. How much of the 25% brine solution and how much of the 18% brine solution were used to produce 28L of the 20% solution?
Click here to see answer by stanbon(75887)

Question 743335: 1) how many litres of 12% sodium hypochlorite solution are needed to make 100 litres of 2% sodium hypochlorite solution? ( assume that a 1% solution is equivalent to 10,000 mg/l concentration)
2) What should the chlorine dosage be for water that has a chlorine demand of 2.2 mg/l and residual of 0.3 mg/l is desired?
Click here to see answer by KMST(5328)

Question 743540:
How many liters each of a 40% acid solution and a 65% acid solution must be used to produce 60 liters of a 45% acid solution.
Click here to see answer by checkley79(3341)

Question 743545: How many liters each of a acid solution and a 65% acid solution must be used to produce 50 liters of a 45% acid solution?
Click here to see answer by josgarithmetic(39616)

Question 743642: A bag of peanuts is worth $0.36 less than a bag of cashews. Equal amounts of peanuts and cashews are used to make 40 bags of a mixture that sells for $1.15 per bag. How much is a bag of cashews worth $23.00 is the answer i get and it worng

Click here to see answer by Edwin McCravy(20054)

Question 743709: How much pure acid should be mixed with 7 gallons of a 40% acid solution in order to get a 70% acid solution?
Click here to see answer by josgarithmetic(39616)

Question 744128: If you have 100kg of milk with 4% fat, how much 1% fat milk can I make?
Click here to see answer by josgarithmetic(39616)

Question 744180: how i can prepare a brine solution of a normal salt used at home of 5% and of 10 % ? Thank you
Click here to see answer by josgarithmetic(39616)

Question 744420: Hello, please help me answer this problem: What quantity of 60 percent acid solution must be mixed with a 30 percent solution to produce 630 mL of a 50 percent solution? Im not too sure where to begin maybe make a table?
Click here to see answer by rothauserc(4718)

Question 744456: Biff, Bertha, and Bartholomew shared 169 apples in the unusual ratio of one-half, one-third, and one-fourth. How many apples did each receive?
Click here to see answer by josgarithmetic(39616)

Question 744417: how old is each person. If jose is five years older than amanda.Mike is twice as old as jose. bill is three times as old as amanda.

Click here to see answer by ankor@dixie-net.com(22740)

Question 744693: I can't figure out how to solve this problem.
In the formula below find t, if B=5 and v=3
The formula is written as B= tv+7/ (over) t-v
Click here to see answer by josgarithmetic(39616)

Question 744741: A farmer uses two gallons of insecticide concentrate to spray each 1/2 acre of his land. How many gallons of the concentrate will he need to spray 10 1/2 acres?
I would like to know the steps to take when solving this problem.

Thank you,
Ty
Click here to see answer by josgarithmetic(39616)

Question 744729: A pharmacist has 6L of a mixture that is 20% alcohol. How much pure alcohol must be added to obtain a mixture that is 70% alcohol?
Click here to see answer by ankor@dixie-net.com(22740)

Question 744728: could you help me solve this?
8x(x-1)=5(1-x)
Click here to see answer by Alan3354(69443)

Question 744895: How much pure water must be mixed with 2 pints of 50% developer to produce a mixture that is
31% developer
Click here to see answer by josmiceli(19441)

Question 744940: three solutions contain a certain acid. the first contains 15% acid, the second 35%, and the third 40%. A chemist wishes to use all three solutions to obtain a 75-liter mixture containing 34% acid. If the chemist wants to use twice as much of the 35% solution as of the 40% solution, how many liters, to the nearest 10th, of each solution should be used?
Click here to see answer by josmiceli(19441)

Question 744992: Wilma went to the local market and bought 3 lemons and 5 oranges for $2.40.The same day and for the same price ,Fran bought 4 lemons and 7 oranges for $3.31.What was the prices per lemon and the price per orange?
Answer is $o.25 per lemon and $.33 per orange
Click here to see answer by josmiceli(19441)

Question 745006: How do i solve 49 times 19... Mentally?
Click here to see answer by stanbon(75887)

Question 745006: How do i solve 49 times 19... Mentally?
Click here to see answer by Alan3354(69443)

Question 745047: If 100 gallons of 75% glycerine solution is made up by combining a 30% glycerine solution with a 90% glycerine solution, how much of each solution must be used?
Click here to see answer by Menjax(62)

Question 745112: 50<30+2t<100
Click here to see answer by jim_thompson5910(35256)

Question 745188: Bill can clean his office in 4 hours. Bob can do the cleaning in 3. How many hours will it take them if they work together?
An inlet pipe can fill an artificial pond in 60 minutes, while an outlet pipe an empty it in 80. Through an error, both pipes are left on. How long will it take for the pond to fill?
Click here to see answer by jim_thompson5910(35256)

Question 745229: A chemist has 20% and 60% solution of acid available. How many liters of each solution should be mixed to obtain 10 liters of a 30% acid solution?
Click here to see answer by stanbon(75887)

Question 745578: An inlet pipe can fill an artificial pond in 60 minutes, while an outlet pipe can empty it in 80 minutes. If both pipes are left on, how long will it take the pond to fill?
Can you help me set this up and solve please
Click here to see answer by savvyhush23(50)

Question 745601: ok so Foamer A is 8% and uses 10 quarts in 24 hr Now I have foamer B at 13% I need to know how many quarts it will take in 24 hr
Click here to see answer by rothauserc(4718)

Question 745597: find a if a(a-8)=20
Click here to see answer by tommyt3rd(5050)

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