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Question 835864: A relief organization supplies blankets, cots, and lanterns to victims of fires, floods, and other natural disasters. One week, the organization purchased 15 blankets, 5 cots, and 10 lanterns for a total cost of $1150. The next week, at the same prices, the organization purchased 20 blankets, 10 cots, and 15 lanterns for a total cost of $1800. The third week, at the same prices, the organization purchased 10 blankets, 15 cots, and 5 lanterns for a total cost of $1325. Find the cost of one blanket, the cost of one cot, and the cost of one lantern.
Click here to see answer by stanbon(75887)

Question 835833: If the ratio of three sides of a triangle is a:b:c =7:8:9 then show that cos A:cosB:cosC= 14:11:6
Click here to see answer by richard1234(7193)

Question 835942: You have 24 carat gold thread and 16 carat gold thread from which you need to mold a 10 gram ring of 18 carat gold. How many grams of each thread should you use? How do I solve it?
Click here to see answer by richwmiller(17219)

Question 835959: how many quarts of pure antifreeze must be added to 5 quarts of a 10% antifreeze solution to obtain a 50% antifreeze solution?
Click here to see answer by richwmiller(17219)

Question 835974: How much water should I add to 10ml of a 10% acid solution to make it a 5% solution?
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Question 835994: To produce sausage formulations, packers normally use lean beef, pork belly, and soy concentrate. The manufacturer uses 3 percent soy in final sausage mass. Water is added to the formulation as ice. The final sausage must contain: 15 percent protein, 60 percent moisture, and 25 percent fat. The ingredients contain the following:
lean beef- 20% protein, 67% moisture, 13% fat
pork belly- 10% protein, 40 % moisture, 50% fat
soy- 90% protein, 7% moisture, 0% fat
How much of each ingredient should be combined to make 600 kg of sausage emulsion?
Click here to see answer by josgarithmetic(39616)

Question 835987: A brewer's spent grain contains 80 percent (m/m) moisture. When the grain has lost half of its weight, what is the moisture content?
Click here to see answer by josgarithmetic(39616)

Question 836170: Suppose that you have a supply of a 35% solution of alcohol and a 65% solution of alcohol. How many quarts of each should be mixed to produce 60 quarts that is 55% alcohol?
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Question 836249: a 30 lb bag of cement contains 35% cement and 65% sand. how much pure cement must be added to produce a cement mix that is 50% cement?
i started to make a chart to help visualize, but i don't know where to plug in any of the values
Click here to see answer by LinnW(1048)

Question 836246: what is 3% of 80 grams
Click here to see answer by richwmiller(17219)

Question 836322: The chemical formula for sulfuric acid is H2SO4. If the weight of the acid is 1470 grams, how much does the sulfur weigh? (H,1: S,32; O,16)
Click here to see answer by josgarithmetic(39616)

Question 836291: Doreen is a chemist. She needs to prepare 36 ounces of a 13% hydrochloric acid solution. find the amount of 18% solution and amount of 9% solution she should mix to get the solution...How do I solve this??? Please help me.
Click here to see answer by nerdybill(7384)

Question 836365: In a 40 -litre mixture of milk and water,the water is 10%.How much water is to be added to get a new mixture in which the water is 20%.
Click here to see answer by josgarithmetic(39616)

Question 836590: i have a 30 ml bottle how many ml would i use to get 80% in the bottle ?
Click here to see answer by psbhowmick(878)

Question 836854: Mildly has 2.5 times as many pairs of shoes as Charlotte . If Charlotte has 16 pairs of shos , how much doe mildly have ?
Click here to see answer by amomoses(4)

Question 837016: a smelter ha 640 pounds of a 50% silver alloy and 200 pounds of a 20% alloy. how much of the 50% silver alloy must be mixed with all of the 20% alloy to give a 30% silver alloy?
Click here to see answer by stanbon(75887)

Question 837027: a tank contains 10 gallons of a 6% salt solution. how much water must be evaporated so that an 8% salt solution will remain?
Click here to see answer by stanbon(75887)

Question 837091: 9 lbs. of mixed nuts containing 55% peanuts were mixed with 6lbs. of another kind of mixed nuts that contain 40% peanuts. What percent of the new mixture is peanuts? Only an algebraic solution will be accepted.
Click here to see answer by josgarithmetic(39616)

Question 837122: 1. a 25% solution acid is mixed with a 15% acid solution to make 20 ounces of a 21% acid solution. How many ounces of each solution are used?
2. A 35% saline solution is mixed with a 20% saline solution to make 15 ounces of a 25% saline solution.
How many ounces of each solution are used?
Click here to see answer by josgarithmetic(39616)

Question 837142: What quantity of a 60% acid solution must be mixed with a 35% solution to produce 500 mL of a 50% solution?
Click here to see answer by Alan3354(69443)

Question 837160: how much of a 60% salt solution must be mixed with 108 liters of an 80% salt solution to get a 75% salt solution?
Click here to see answer by Alan3354(69443)

Question 837200: Hii can you please provide an easy solution for this as im very weak when it comes to math. Thank you so much :)
A Pharmacist wishes to convert 100 ounces of a 3 percent tincture of iodine to a 2 percent tincture of iodine. How many ounces of alcohol should she add to her original solution?
Click here to see answer by josgarithmetic(39616)

Question 837455: a coffee shop decides to blend a coffee that sells for 12$ per pound with a coffee that sells for $9 per pound to produce a blend that will sell for $10 a pound. How much of each should be used to yield 20 pound o the new blend?
Click here to see answer by lwsshak3(11628)

Question 837617: What quantity of a 70% acid solution must be mixed with a 30% solution to produce 400 mL of a 45% solution?
Click here to see answer by Alan3354(69443)

Question 837618: What quantity of pure acid must be added to 600 mL of a 30% acid solution to produce a 60% acid solution?
Click here to see answer by josgarithmetic(39616)

Question 837556: You add 50 grams of ground Costa Rican coffee to 200 grams of a ground mixture that contains 5% Costa Rican coffee. What is the percent of Costa Rican coffee in the new mixture?
Click here to see answer by josgarithmetic(39616)

Question 837555: In order to increase the amount of salt in a 40 gram mixture from a 5% to 20% salt, how much salt must be added?
Click here to see answer by lwsshak3(11628)

Question 837661: Emma makes a mixture of lattes at the coffee house. The mixture must contain 25% coffee and the rest milk. If Emma has already made eighteen cups of coffee, how much milk is needed?
Click here to see answer by Theo(13342)

Question 837699: To create a breakfast beverage, kiwi juice in two concentrations, 14% and 40%, must be combined into a solution that will be mixed with another type of juice to produce the beverage. If 60 gallons of 14% juice is used, how many gallons of the 40% juice must be used to obtain a 30% kiwi juice solution?
Click here to see answer by Theo(13342)

Question 837871: a chemist has 200ml of a 52% acid solution. How much pure acid must be added to obtain 60% acid solution?
Click here to see answer by josgarithmetic(39616)

Question 837983: How many liters of pure alcohol must be mixed with five liters of 20% concentration of alcohol to make a mixture that is 50% alcohol?
Click here to see answer by josgarithmetic(39616)

Question 838065: how many 3/2 pounds boxes of cereal can be made from 990 pounds of cereal?
Click here to see answer by josh_jordan(263)

Question 838261: If I add 250 grams of Nitric Acid to 1 liter of water, what percentage of the mixture is nitric acid?
Click here to see answer by richwmiller(17219)

Question 838300: Suppose that x liters of pure peroxide are added to 700 liters of a 20% peroxide solution. Write a formula that gives the concentration, C, of the new mixture. How many liters of pure peroxide should be added to produce a new mixture that is 35% peroxide? Round to the nearest liter. Please show work.
Click here to see answer by richwmiller(17219)

Question 838299: How many ounces of water must be evaporated from 135 ounces of a 10% salt solution to make a 15% salt solution?
Click here to see answer by ewatrrr(24785)

Question 838298: How many liters of water must be added to 10 liters of a 36% soap solution to make it a 12% soap solution?
Click here to see answer by ewatrrr(24785)

Question 838346: if 5 ounces of medicine has to be mixed with 8 ounces of water, how many ounces of medicine needs to be added to 20 ounces of water?
Click here to see answer by josmiceli(19441)

Question 838354: 2/3 is what percent of 180? Do not round.
Click here to see answer by Fombitz(32388)

Question 838354: 2/3 is what percent of 180? Do not round.
Click here to see answer by stanbon(75887)

Question 838335: Meryl needs to add enough water to 11 gallons of an 18% detergent solution to make a 12% detergent solution. Which equation can she use to find g, the number of gallons of water she should add?

Click here to see answer by josgarithmetic(39616)

Question 838359: jackie earns $546 per week at her job. If she is getting a raise of 2 1/2%, what is her new salary?
Click here to see answer by josmiceli(19441)

Question 838374: A 60% alcohol solution is to be mixed with a 42% alcohol solution. How many liters of the 60% solution should be used to make 30 liters of a 54% alcohol solution?
Click here to see answer by josgarithmetic(39616)

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