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 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 398764: what quantity x of a 65% acid solution must mix with a 20% solution to produce 300 mL of a 45% solution Click here to see answer by nerdybill(6958)

 Question 398858: Peanuts cost \$0.80 a pound, cashews \$1.50 a pound, anf alnuts \$1.50 a pound. A store clerk needs to make 6 pound of mixed nuts using these three types so the cost is \$6.90. If she wants to use 3 times as much peanuts as cashews, find how much of each type she should use. Click here to see answer by checkley79(3050)

 Question 399000: How many gallons of a 10%-salt solution must be mixed with 6 gallons of a 22%-salt solution to obtain a 13%-salt solution Click here to see answer by Tatiana_Stebko(1326)

 Question 399003: A nurse wants to obtain 80 ml of a 7% solution of boric acid by mixing 9% and 12% solutions. How much of each should be used? Click here to see answer by checkley79(3050)

 Question 399229: How much pure water must bemixed with 6 pints of 60% developer to produce a mixture that is 16% developer? Click here to see answer by robertb(4012)

 Question 399321: a feed store has one thousand pounds of a mixture that is 90% oats. how many pounds of other ingridients must be added to make the mixture 80% oats? Click here to see answer by josmiceli(9671)

 Question 399300: How many ounces of a 30 % solution must be mixed with 12 ounces of a 35 % solution to make a 33 % solution Click here to see answer by josmiceli(9671)

 Question 399355: a chemist has two solutions of the same acid, one containing 15% of the acid and the other 25%. how many cubic centimeters of each should he use to make 120 cc of a 21% acid solution? Click here to see answer by mananth(12270)

 Question 399404: What quantity of a 40% acid solution must be mixed with a 10% solution to produce 300 quarts of a 30% solution? Click here to see answer by stanbon(57307)

 Question 399532: A pharmacist is to prepare 18 milliliters of special eye drops for a glaucoma patient. The eye-drop solution must have a 3% active ingredient, but the pharmacist only has 9% solution and 2% solution in stock. How much of each type of solution should be used to fill the prescription? Click here to see answer by josmiceli(9671)

 Question 399572: 1) sandra spent 2/5 of an hour helping a customer extange an unwanted gift. then she spent 1/2 an hour giving a costumer a refund. what fraction of an hour did she spend helping both customer? 2)efrain the carpenter cut off 1/8 of a 56 inch board. how many inches did cut off? 3)two-fifths of the area of school parking lot can be used for a cultural festival. if the whole parking lot is 7800 square feet, how many square feet can be used for the festival? 4)sprockets R Us is selling its bicycle sprockets for 2/5 of a dollar. this price shows a decrease of 1/3 of the original price. what was the original price? 5)shad made 9 of the 25 free throws at basketball practice. what percent did he make? Click here to see answer by edjones(7569)

 Question 399622: sandra spent 2/5 of an hour helping a customer extange an unwanted gift. then she spent 1/2 an hour giving a costumer a refund. what fraction of an hour did she spend helping both customer? Click here to see answer by solver91311(16877)

 Question 399624: two-fifths of the area of school parking lot can be used for a cultural festival. if the whole parking lot is 7800 square feet, how many square feet can be used for the festival? Click here to see answer by Tatiana_Stebko(1326)
 Question 399624: two-fifths of the area of school parking lot can be used for a cultural festival. if the whole parking lot is 7800 square feet, how many square feet can be used for the festival? Click here to see answer by solver91311(16877)

 Question 399625: sprockets R Us is selling its bicycle sprockets for 2/5 of a dollar. this price shows a decrease of 1/3 of the original price. what was the original price? Click here to see answer by rfer(12657)

 Question 399640: A 3% solution of sulfuric acid was mixed with an 18% solution of sulfuric acid to produce an 8% solution. How much 3% and how much 18% solution were used to produce 15L of 8% solution? Click here to see answer by checkley79(3050)

 Question 399660: This makes no sens what so ever... I am an 7th grader taking highschool math courses and this just stumped me. Sarah and her brother, Jacob, worked hard weeding their neighbor’s garden. Together, they earned a total of \$1040. Sarah earned \$240 more than Jacob. How much did each of them earn? Write a system of two equations with two variables to model this problem. Use substitution or the elimination method to solve the system. Answer the question. show how to check your answer. Click here to see answer by stanbon(57307)
 Question 399660: This makes no sens what so ever... I am an 7th grader taking highschool math courses and this just stumped me. Sarah and her brother, Jacob, worked hard weeding their neighbor’s garden. Together, they earned a total of \$1040. Sarah earned \$240 more than Jacob. How much did each of them earn? Write a system of two equations with two variables to model this problem. Use substitution or the elimination method to solve the system. Answer the question. show how to check your answer. Click here to see answer by Tatiana_Stebko(1326)

 Question 399613: How many ounces of a solution that is 10% alcohol should be mixed with 12 ounces of a solution that is 24% slcohol to create a solution that is 15% alcohol? Click here to see answer by checkley79(3050)

 Question 399813: Can you explain how to solve this word problem?: How much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution? Click here to see answer by mananth(12270)

 Question 399839: How much 2% alcohol must be mixed with 10% alcohol to get 2000 ml of 8% alcohol? Click here to see answer by scott8148(6628)

 Question 399849: How much water must be added to 3 gallons of a 4% insecticide solution to reduce the concentration to 3%. Click here to see answer by stanbon(57307)

 Question 399915: Solve: How much 2% alcohol must be mixed with 10% alcohol to get 2000ml of 8% alcohol? Could you please show me step by step how you get the answer to this problem please? It's an applied problem. I just don't know how you solve this problem. Click here to see answer by ptaylor(2048)

 Question 399944: I understand what the question is asking me. My problem is I do not know how to set it up to solve it. If I could just figure out how it write the formula I could probably solve it. It goes as follows: How much 2% alcohol must be mixed with 10% alcohol to get 2000 ml of 8% alcohol? Click here to see answer by josmiceli(9671)

 Question 400034: a senior class is planning a trip to Chicago. a bus seats 51 people and a van seats 8. if there are 150 students going om the trip in a total of 8 vehicles how many buses and vans are taken on the trip? Click here to see answer by ewatrrr(10682)

 Question 400038: sprockets R Us is selling its bicycle sprockets for 2/5 of a dollar. this price shows a decrease of 1/3 of the original price. what was the original price? can you explain me how can i do this. please Click here to see answer by Alan3354(30993)

 Question 400353: The cooling system in a truck contains 4 gallons of coolant that is 30% antifreeze. How much must be withdrawn and replace with 100% antifreeze to bring the coolant in the system to 50% antifreeze? I have no idea where to start. Click here to see answer by lwsshak3(6494)

 Question 400514: if you go to a bar and order 180 ml ethyl alcohol mixed with 720 ml water and ask waiter to bring order in measuring flask hw come we get les than one ltr Click here to see answer by edjones(7569)
 Question 400514: if you go to a bar and order 180 ml ethyl alcohol mixed with 720 ml water and ask waiter to bring order in measuring flask hw come we get les than one ltr Click here to see answer by solver91311(16877)

 Question 400543: Hi....sorry not very clever when it comes to measurements.... If it is 50ml to 10 litres of water....then how many ml is it for 1 litre of water.? many thanks T.Heaton Click here to see answer by mananth(12270)

 Question 400613: Ms. Butler is filling planter boxes with soil. She has soil that is 28% sand, and she buys 6 pounds of a commercial potting soil that is 33% sand. She mixes some of her soil with the 6 pounds of commercial potting soil. The resulting soil mixture is 31% sand. How many pounds of her soil did Ms. Butler use? Click here to see answer by josmiceli(9671)

 Question 400609: Tal is making a nut mixture to sell at the local farmers' market. He mixes 5 pounds of pistachios with a nut mixture that is 70% pistachios. The resulting mixture is 80% pistachios. How many pounds of nut mixture does Tal make? Click here to see answer by ptaylor(2048)

 Question 400647: A total of 772 tickets were sold for the school play. There were 72 more student tickets sold than adult tickets. How many adult tickets were sold? Click here to see answer by sofiyac(695)

 Question 400736: How much water must be added to 6 gallons of a 4% insecticide solution to reduce the concentration of 3%? (Hint: water is 0% insecticide.) I only came up with---- x+6(.04)=.03 Click here to see answer by Tatiana_Stebko(1326)

 Question 400731: How many liters of a 14% alcohol solution must be mixed with 20L of a 50% solution to get a 30% solution? Click here to see answer by Tatiana_Stebko(1326)

 Question 400806: If a bag of peanuts cost \$2.00 per pound what will it cost me ounce Click here to see answer by checkley79(3050)

 Question 400904: Here is the problem: The cooling system of a car has a capacity of 15 liters. If the system is currently filled with a mixture that is 40% antifreeze, how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution of 50% antifreeze? I have to 1)define the variables, 2)set up the equation, 3)solve the equation, and 4)answer the question. I am having problems with 1 and 2, defining the variables and setting up the equation. Once I have those I can solve them and answer the questions. Please help! Click here to see answer by ankor@dixie-net.com(15649)

 Question 400956: how much pure acid should be added to 18 L of 30% acid to increase the concentration of 50% acid? Click here to see answer by stanbon(57307)

 Question 400990: dilute 66 gallons with 1 liter of water,how many milliliters per gallon Click here to see answer by rfer(12657)

 Question 401189: A car radiator has a 16 quart capacity and is currently filled with a 40% antifreeze solution. How many quarts of this solution must be drained off and replaced with 100% antifreeze to create a 50% antifreeze solution? Click here to see answer by nerdybill(6958)
 Question 401189: A car radiator has a 16 quart capacity and is currently filled with a 40% antifreeze solution. How many quarts of this solution must be drained off and replaced with 100% antifreeze to create a 50% antifreeze solution? Click here to see answer by josmiceli(9671)

 Question 401518: The Cookie Crumble Company sells two kinds of cookies. Peanut butter are \$6.50 per dozen and chocolate chip are \$9.00 per dozen. They sold 85 dozen more peanut butter than chocolate chip cookies. The total sales for both were \$4055.50. How many dozens of each were sold? Click here to see answer by josmiceli(9671)

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