# Questions on Word Problems: Mixtures answered by real tutors!

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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 225167: I need HELP!!! Can you please help me??? Solve by writing a system of equations. The federal tax on a \$12,000 salary was 8 times the state tax. The combined taxes were \$2,700. Find the state's share of taxes. Click here to see answer by Alan3354(30983)

 Question 225163: I need HELP!!! Can you please help me??? Solve by writing a system of equations. It takes 4 hours for a boat to travel 56 miles downstream. The same boat can travel 36 miles upstream in 6 hours. Find the rate of speed of the boat in still water and the rate of the current. Click here to see answer by ankor@dixie-net.com(15638)

 Question 225271: An automobile radiator contains 16 liters of antifreeze and water. This mixture is 30% antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so that there will be 50% antifreeze? Click here to see answer by josmiceli(9661)

 Question 225460: How much water should be added to 16 mL of 20% alcohol solution to reduce the concentration to 8%? Click here to see answer by josmiceli(9661)
 Question 225460: How much water should be added to 16 mL of 20% alcohol solution to reduce the concentration to 8%? Click here to see answer by checkley77(12569)

 Question 225668: A 3% solution of sulfuric acid was mixed with an 18% solution to produce an 8% solution. how much 3 % solution and 18% solution were used to produce 15 liters of 8% solution? Click here to see answer by checkley77(12569)

 Question 225710: The owner of a pet food store wants to mix birdseed that costs \$1.25 per pound with sunflower seeds that cost \$0.75 per pound to make 50 pounds of a mixture that costs \$1.00 per pound. HOw many pounds of each seed should he use? Click here to see answer by checkley77(12569)

 Question 225941: How many gal. of a 65% saline solution must be mixed with 8 gal. of pure water to make a 25% solution? Click here to see answer by nerdybill(6950)

 Question 225993: A boat is pulled toward dock by means of a rope wound on a drum that is located 6ft above the bow of the boat. if the rope is being pulled in at the rate of 6ft/sec, how fast is the boat approaching the dock when it is 24ft from the dock? Click here to see answer by Edwin McCravy(8882)

 Question 226028: one salt solution is 15% and another is 20% salt. How many cubic centimeters of each solution must be mixed to obtain 50 cubic centimeters of 16% solution? Click here to see answer by ankor@dixie-net.com(15638)

 Question 226586: how much water should be evaporated from 24 oz of a 4% solution to make a 6% salt solution Click here to see answer by RAY100(1637)

 Question 226639: What quantity of 75 per cent acid solution must be mixed with a 30 percent solution to produce 1215 mL of a 50 per cent solution? Click here to see answer by checkley77(12569)

 Question 226964: A pharmacist wants to make a solution that is 60% alcohol. On the shelf are two bottles of 40% and 20% strength alcohol. Explain the step(s) and the outcome of this mixture. Click here to see answer by ankor@dixie-net.com(15638)

 Question 227241: A chemist has some 12% hydogen peroxide solution and some 9% hydogen peroxide solution. how many milliters of each should be mixed to make a 450-milliter solution that is 10% hydogen peroxide? Click here to see answer by checkley77(12569)

 Question 227239: A chemist has some 12% hydogen peroxide solution and some 9% hydogen peroxide solution. how many milliters of each should be mixed to make a 450-milliter solution that is 10% hydogen peroxide? Click here to see answer by checkley77(12569)

 Question 227286: An 18 quart radiator contains a 40% solution of antifreeze. How much must be drained out and replaced with pure antifreze to obtain a 70% antifreeze solution? Click here to see answer by checkley77(12569)

 Question 227284: How many millimeters of pure acid must be added to 120 milliliters of a 30% acid solution to obtain a 50% solution? Click here to see answer by checkley77(12569)

 Question 227277: peanuts sell for \$3 per pound. cashews sell for \$6 per pound. how many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture that sells for \$4.20 per pound? Click here to see answer by checkley77(12569)

 Question 227466: Find the quadratic equation with integral coefficient whose roots are negative 2 and three fifths. Click here to see answer by jsmallt9(3296)

 Question 227560: Find the cost per pound of a trail mix made from 10 lb of raisins that cost \$4.20 per pound and a 90 lb of granola that costs \$5.60 per pound Click here to see answer by checkley77(12569)

 Question 227659: How much pure antifreeze should be added to a gallon of 70% antifreeze solution to make a 90% antifreeze solution? Click here to see answer by nerdybill(6950)

 Question 227566: Dr. Wilson purchased a luxury car for \$32,500. This is \$7,000 more than twice the price her husband paid for a commuter car earlier that year. Find the price of the commuter car. Click here to see answer by checkley77(12569)

 Question 227415: Mixing Solutions. Many occupations require the mixture of liquids to create a needed solution of a certain strength. Since the strength of a solution is dependent on the customers need, stockpiling all strengths is not economically possible. So, the solution is made to order. Question 1: A pharmacist wants to make a solution that is 60% alcohol. On the shelf are two bottles of 40% and 20% strength alcohol. Explain the step(s) and the outcome of this mixture. Click here to see answer by ankor@dixie-net.com(15638)

 Question 227839: A bag of peanuts is worth 30 cents less than a bag of cashews. Equal amounts of peanuts and cashews are used to make 40 bags of a mixture that sells for \$1.05 per bag. How much would a bag of cashews be worth? Click here to see answer by ankor@dixie-net.com(15638)

 Question 227894: how much water should you add to 150 ml of a 25% salt solution to make the solution 15% salt? Click here to see answer by josmiceli(9661)

 Question 227856: How much water must be mixed with 7 pints of 50% developer to make a mixture that is 13% developer? Click here to see answer by ptaylor(2048)

 Question 227945: Algebra:how much water must be boiled away to increase the concentration of 300 gallons of salt solution from 2% to 3%? Click here to see answer by checkley77(12569)

 Question 227889: this month's rainfall is 5 inches lower than last month's rainfall of 9 inches Click here to see answer by checkley77(12569)

 Question 227994: A chemist needs 130 milliliters of a 28% solution but has only 19% and 58% solutions available. Find how many milliters of each that should be mixed to get the desired solution. Click here to see answer by ankor@dixie-net.com(15638)

 Question 228271: soybean meal is 14% protein, cornmeal is 7% protein how many pounds of each would be needed to make a 280lb mixture that is 10% protein? Click here to see answer by checkley77(12569)

 Question 228341: How many liters of a 60% acid solution must be mixed with a 75% acid solution to get 20 L of a 72% solution? Click here to see answer by checkley77(12569)

 Question 228603: A chemist has one solution containing a 16% concentration of acid and a second solution containing a 26% concentration of acid. How many milliliters of each should be mixed in order to obtain 30 milliliters of a solution containing an 18% concentration of acid? Click here to see answer by checkley77(12569)

 Question 228403: A mixture of 10% acid and 90% water is added to 5 liters of pure acid. the final mixture is 40% water . How many liters of water are in the final mixture? thanks Click here to see answer by ankor@dixie-net.com(15638)

 Question 228824: Please help me solve this: Find the amount of a 12% saline solution a lab assistant should add to 80 cc(cubic centimeters) of a 22% saline solution in order to have a 16% solution. Click here to see answer by solver91311(16868)

 Question 228894: Dan is 1/6 his father's age. In 4 years, Dan will be 1/4 his fathers age. what is Dan's age? Click here to see answer by ankor@dixie-net.com(15638)
 Question 228894: Dan is 1/6 his father's age. In 4 years, Dan will be 1/4 his fathers age. what is Dan's age? Click here to see answer by edjones(7569)

 Question 228905: If you have 90 ounces of water to make a 10% salt solution, what is the decrease in ounces of water to make a 15% salt solution. Click here to see answer by josmiceli(9661)

 Question 229250: how many liters of 75% gas and 90% gas would you need for 1200 liters of 85% gas? Click here to see answer by checkley77(12569)

 Question 229261: How much water must be added to 16 liters of a 30% solution to get a solution that is 22% acid? Please show the steps, so that I may do the same with a similar problem. Thank you. Byron Click here to see answer by Alan3354(30983)

 Question 229187: A grocer mixed nuts worth 85 cents per pound with nuts worth 55 cents per pound. How many pounds of each kind did he use to make a mixture of 60 pounds to sell at 75 cents per pound? I believe the equations are 0.85x+0.55y=45 and x+y=60 and the answers are y=20 and x=40, but I am not sure. May you please help me? Thank you very much! Click here to see answer by ankor@dixie-net.com(15638)

 Question 229501: Show an equation and a solution. How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution. (Remember that pure antifreeze is 100% = 1.) Click here to see answer by edjones(7569)

 Question 229376: in a chemistry class, 6 liters of 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. how many liters of the 10% solution are needed? Click here to see answer by ankor@dixie-net.com(15638)

 Question 230075: How many liters of a 20% alcohol solution must be miced with 50 liters of a 70% solution to get a 50 % solution? I can solve this just by using the equation of .20x + 35 = .50(50+x) But this has to be done in a system of equations. I am stumped on how to get the 2nd equation. There is no usual x+y = a certain total amount here. Not looking for the answer but just the 2nd. equation Thanks in advance :0) Click here to see answer by josmiceli(9661)

 Question 230589: An environmental group estimates that the amount of pollution in a pond will decrease by 10% each month. To determine the concentration C, of pollutants (in parts per million) after (m) months, the group uses the function C(m)=23(0.95)^m . (1) to the nearest tenth, what will be the concentration of pollutants in the pond in 5 years? (2) What was the initial concentration of pollutants in the pond? Click here to see answer by nerdybill(6950)

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