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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 354211: 25 meters and I have looked to see if I can get help and do not see this anywhere. I am lost for this one. Crop circles. The expression πr2 gives the area of a circle with radius r. How many square meters of wheat were destroyed when an alien ship made a crop circle of diameter 25 meters in the wheat field at the Southwind Ranch? Click here to see answer by Earlsdon(6287)

 Question 354271: how many ounces of a 10% alcohol solution must be mixed with 18 ounces of a 15% alcohol solution to make a 13% alcohol solution? Click here to see answer by ewatrrr(10682)

 Question 354137: In a chemistry class, 5 liters of a 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 scott8148(6628)

 Question 354378: How many liters of a 20% acid solution must be mixed with a 60% solution to obtain 40 liters of a 35% solution? Click here to see answer by stanbon(57323)

 Question 354396: An auto mechanics has two bottles of battery acid solutions. One contains 10% acid and the other 4% acid. How many cubic centimeters of each solution must be used to make 120 cm³. Click here to see answer by Alan3354(30993)

 Question 354406: Peanuts cost \$4 per pound and walnuts cost \$5.50 per pound. A 40-pound mixture sells for \$184. How many pounds of each kind of nut are in the mixture? Click here to see answer by sofiyac(695)

 Question 354468: HOW MANY LITERS OF A 20% SALT SOLUTION MUST BE ADDED TO 8 LITERS OF A 5% SALT SOLUTION TO YIELD AN ALLOY TAHT IS A 10% SALT SOLUTION? Click here to see answer by mananth(12270)

 Question 354736: how much pure acid should be mixed with 3 gallons of a 50% acid solution to get an 80% acid solution? Click here to see answer by scott8148(6628)

 Question 354753: In a chemistry class, 5 liters of a 6% silver iodide solution must be mixed with an 8% solution to get a 7% solution. How many liters of the 10% solution are needed? Click here to see answer by checkley77(12569)

 Question 354443: How many pints of a 5% antifreeze solution and how many pints of a 20% antifreeze solution must be mixed to obtain 12 pints of a 15% solution? Click here to see answer by scott8148(6628)

 Question 354458: the radiator in natalie’s car contains 6.3 l of antifreeze and water. this mixture is 30% antifreeze. how much of this mixture should she drain and replace with pure antifreeze so that there will be a mixture of 50% antifreeze? Click here to see answer by scott8148(6628)

 Question 354615: There are two acid solution available. One solution has a 5% acid concentration while the other has 15% acid concentraion. How much solution is needed to obtain 10 gallons of 8% solution? Click here to see answer by scott8148(6628)

 Question 354728: a solution containing 40% alcohol is to be mixed with a solution containing 75% alcohol. How much of each solution should be used to make 100 mL of a mixture that is 50% alcohol? Click here to see answer by checkley77(12569)

 Question 354915: The Quick Mart has two kinds of nuts. Pecans sell for \$1.55 per pound and walnuts sell for \$1.95 per pound. How many pounds of walnuts must be added to 15 pounds of pecans to make a mixture that sells for \$1.75 per pound? I am not sure of the equation to use for this problem. Not looking for an answer just not sure of the equation to use. Thank You for your help!!! Click here to see answer by scott8148(6628)

 Question 355104: How many grams of 50% silver alloy and a 10% silver alloy must be mixed to obtain 24 grams of a 25% silver alloy? Click here to see answer by robertb(4012)

 Question 355123: how much pure alcohol should be added to 24 ounce of a 45% solution in order to obtain 60% solution Click here to see answer by Fombitz(13828)

 Question 355138: How many gallons of milk containing 4% fat is mixed with milk containing 1% fat to obtain a 15 gallon mixture containing 2% fat? Click here to see answer by mananth(12270)
 Question 355138: How many gallons of milk containing 4% fat is mixed with milk containing 1% fat to obtain a 15 gallon mixture containing 2% fat? Click here to see answer by ewatrrr(10682)

 Question 355242: how many liters of 20% alcohol solution and 10% alcohol solution must be mixed to obtain 50 liters of a 12% alcohol solution? Click here to see answer by Fombitz(13828)

 Question 355244: how many liters of 25% alcohol solution and 15% alcohol solution must be mixed to obtain 40 liters of a 20% alcohol solution? Click here to see answer by Alan3354(30993)

 Question 355305: Suppose 100 fish are caught,tagged and released. Two weeks later 40 fish are caught, 5 of which are found have tags. Using this information,estimate the number of fish in the lake? Click here to see answer by edjones(7569)

 Question 355394: A grocer prepares a mixture of two pastas to sell. For the mixture he uses penne pasta that sells for \$4.75 per pound and rigatoni that sells for \$6.00 per pound. If he uses 2 pounds of penne pasta and 3 pounds of rigatoni for a 5 pounds mix, how much should he sell the pasta for per pound? Click here to see answer by checkley77(12569)

 Question 355521: a painter needs to have 24 gallons of paint that contains 30% solvent. how many gallons of paint containing 20% solvent ahd how many gallons containing 60% solvent should be mixed to obtain the desired paint? Click here to see answer by mananth(12270)

 Question 355465: a solution containing 28% fungicide is to be mixed with a solution containing 40% fungicide to make 300L of a solution containing 36% fungicide. how much of each solution should be used? Click here to see answer by Fombitz(13828)

 Question 355837: How much pure water must be mixed with 8 pints of 60% developer to produce a mixture that is 24% developer? Click here to see answer by Alan3354(30993)
 Question 355837: How much pure water must be mixed with 8 pints of 60% developer to produce a mixture that is 24% developer? Click here to see answer by vleith(2825)

 Question 355768: A store manager mixes candy worth 90 cents per pound with gumdrops worth \$1.50 per pound to make 20 pounds of a mixture worth \$1.20 per pound. How many pounds of each kind of candy does he use? Click here to see answer by scott8148(6628)

 Question 356091: How many milliliters of a 28% alcohol solution must be added to 6 milliliters of a 8% alcholol solution to produce a 20% alcohol solution? Click here to see answer by nyc_function(2733)

 Question 356169: On an airplane that was two-thirds full, 20% of the passengers were boys, one-fourth of the passengers were women, one-eighth of the passengers were girls, and there were 68 men. How many seats are on the plane? Click here to see answer by robertb(4012)

 Question 356168: Five students held a party. They agreed to share the expenses equally. Leroy spent \$14 on drinks. Alex spent \$3 on paper plates. Kulwinder spent \$7 on decorations. Max spent \$9 on snacks. Bobbi spent \$2 on envelopes and paper to send invitations out, and she also spent \$5.80 in postage. Who owes money to whom? Click here to see answer by edjones(7569)

 Question 356170: A certain car that is being tested by its manufacturer uses its entire fuel supply in about 38 hours when idling. The same car, when driven at 60 miles per hour on a test track, uses about three-and-a-half times as much fuel per hour as it does when idling. If the engine has been idling for 10 hours and the car is then run at 60 miles per hour, how much longer will the car run before it uses up all of its fuel (assuming it started with a full tank)? Click here to see answer by mananth(12270)

 Question 356238: divide 2000 by 10050 and round to the nearest numbe Click here to see answer by Alan3354(30993)

 Question 356348: jeannie has 10 books overdue at the library. she rembers she checked out 2 science books two weeks before she checked out 8 childeren's books. The daily fine per book is \$0.20. If her total fine is \$11.60, how long was each book over due? Click here to see answer by ewatrrr(10682)

 Question 356356: A farmer needs 120 gallons of 16% nitrogen fertilizer. He only has 12% and 22% nitrogen fertilizers to work with. How much of the 12% and 22% are needed in order to complete the mixture? Click here to see answer by Fombitz(13828)

 Question 356354: How much 20% acid solution, must be added to 10 gallons 8% acid solution to end up with a 15% acid solution? Click here to see answer by Fombitz(13828)

 Question 356464: how much 40% alcohol solution and 25% solution must be mixed together to get 24 gallons of 30% solution? Click here to see answer by Fombitz(13828)

 Question 356507: To get 100 gallons of mixture that is 56% acid solution, it was necessary to mix 20% acid solution with some 80% solution. How much of each was required? Click here to see answer by checkley77(12569)

 Question 356610: A baker has cookies worth \$.95 per pound and cookies worth \$1.70 per pound. How many pounds of each kind must he use to produce a 45-pound mixture to sell for \$1.25 per pound? Click here to see answer by nyc_function(2733)

 Question 356282: How much of an alloy with 30% copper must be added to 25 pounds of a second alloy which is 20% copper to create a 27% alloy? Click here to see answer by nyc_function(2733)

 Question 356700: How much water should you add to 230 mL of a 20% salt solution to make the solution 15% salt? Click here to see answer by Fombitz(13828)
 Question 356700: How much water should you add to 230 mL of a 20% salt solution to make the solution 15% salt? Click here to see answer by mananth(12270)

 Question 356806: A pharmacis wishes to mix a solution that is 4% Minoxidil. She has on had 80ml of 2% and wishes to add some 6% solution to obtain the desired 4% solution. How much 6% solutions should she add? Click here to see answer by Alan3354(30993)

 Question 356924: How many liters of 70% alcohol must be mixed with 30 liters of 15% alcohol to make a mixture that is 60% alcohol? Click here to see answer by nyc_function(2733)

 Question 356978: Ten kilograms of mixed nuts sell for \$595.00 per kilogram. The mixture is obtained from two kinds of nuts, with one variety priced at \$429.00 per kilogram and the other at \$655.00 per kilogram. How much of each must be used? Click here to see answer by robertb(4012)

 Question 357005: A nut mix contains 10% of peanuts and 90% of cashews. It costs 5% more than pure peanuts. Are cashews more expensive than peanuts? By how much? Click here to see answer by Jk22(389)

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