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Question 564714: how many gallons of hydrochloric acid must be added to 12 gallons of a 30% solution to obtain a 40% solution?
Click here to see answer by Maths68(1474)

Question 564734: How many gallons of distilled water must be mixed with 5 gallons of 30% alcohol solution to obtain a 25% solution?
Exlpain...
Click here to see answer by mananth(12270)

Question 564781: In an alloy of 100 pounds of zinc and copper there are 75 pounds of copper. How much copper must be added so that the alloy may be 10% zinc?
Click here to see answer by stanbon(57962)

Question 564784: A pharmacist wishes to mix a solution that is 7% Minoxidil. She has on hand 70ml of a 2% solution and wishes to add some 9% solution to obtain the desired 7% solution. How much 9% solution should she add?
Click here to see answer by ad_alta(240)

Question 564693: a mixture of acid and water is 35% acid. if the mixture contains a total of 50 liters, how many liters of pure acid are in the mixture? how many liters of pure water are in the mixture?
Click here to see answer by ankor@dixie-net.com(15746)

Question 565075: A shopkeeper orders 70 pounds of cashews and peanuts. If the amount of cashews he orders is 20 pounds less than the amount of peanuts, how many pounds of peanuts did he order? Solve the problem by writing and solving a suitable sytem of equations.
Click here to see answer by josmiceli(9817)

Question 565174: a pharmacist is to prepare 15 milliliters of special eye drops. The eye drop solution must have 2% active ingredient, but the pharmacist only has 10% solution and 1% solution in stock. How much of each type of solution should be used to fill the prescription?
Click here to see answer by mananth(12270)

Question 565209: How many centiliters of a 25% acid solution must be added to 200 centiliters of a 4% acid solution to make a 10% acid solution?
Click here to see answer by Maths68(1474)

Question 565287: A famous buttermilk pancake recipe requires 2 cups of milk among other ingredients to make 12 pancakes. At this rate, how many cups of milk are needed to make only 8 pancakes?
Click here to see answer by solver91311(17077)

Question 565445: I know how to do this in my head but don't know how to do it showing my work. Can you help?
"How many gallons of a 25% emulsion solution would you add to a 50 gallon tank to make a 1% mix?"
Click here to see answer by scott8148(6628)

Question 565237: Here is my problem. Its hard.
Pure copper was mixed with a 10% copper alloy to produce an alloy that was 25% copper. How much of the pure copper and how much 10% alloy were used to produce 36kg of 25% alloy?
Click here to see answer by scott8148(6628)

Question 565829: if an 8 ounce glass of orange juice has 72 milligrams of vitamin c how much vitamin c is in a 7ounce glass.
Click here to see answer by ad_alta(240)

Question 565897: a coffee barista is mixing 2 types of coffee beans elcheapo coffee beans ($2 per pounds) and premium star buckaroo coffee beans ($8 per pound) she has 12 pounds of star buckaroo beans and wishes to mix in a quantity of elcheapoo beans to get a blend that can be sold ofr $6 per pound.
how many pound of elsheapo coffee should be used to create the mixture?
Click here to see answer by mananth(12270)

Question 566108: If 5 litres 20% of Sulfuric acid is added to 5 litres of 100% sulfuric acid, then what is the strength of that mixture?
Click here to see answer by Alan3354(31518)

Question 566184: how many pounds each of a $3.50 blend of nuts is mixed to get 10 ponds of a $4.00 blend of nuts
Click here to see answer by Alan3354(31518)

Question 566317: how many pounds each of a $3.50 blend of nuts and a $5.00 blend of nuts is mixed to get 10 pounds of a $4.00 blend of nuts?
Click here to see answer by ad_alta(240)

Question 566298: Bottle A, containing 12L of 15% acid, is combined with bottle B, containing 3L of 25% acid. Bottle C is 26% acid. How much of each solution is neede to have 24L of a 20% acid solution?
Click here to see answer by ankor@dixie-net.com(15746)

Question 566500: Balsamic vinegar contains 2 percent acetic acid, so a 8-oz bottle of balsamic vinegar contains how many ounces of acetic acid?
Click here to see answer by josmiceli(9817)

Question 566568: my question:
A chemist mixes 12l of a solution tht is 45% acid wiht 8l of a sotution that is 70 % acid, what is the % of acid of the mixture?
Click here to see answer by Maths68(1474)

Question 566596: How many gallons of 20% alcohol must be mixed with 3 gallons of 70% alcohol to get a mixture that is 30% alcohol
Click here to see answer by Maths68(1474)

Question 566635: Hello! Can you please help me answer this question right away?
A confectioner finds that it is hard to sell chocolate worth P28.80 a lb which he has 6 lbs. He mixes them with a candy he usually sells at P16.80 a lb and offers the resulting mixture at P21.60 a lb. How much of P16.80 of candy should he use?
*P - pesos
*lb - pounds
Thank You.

Click here to see answer by mananth(12270)

Question 566674: A crock contains 6 liters of brine at a salt concentration of 120 grams/liter. How much pure water should be boiled off to increase the salt concentration to 200 grams per liter?
Click here to see answer by stanbon(57962)

Question 566673: A crock contains 6 liters of brine at a salt concentration of 120 grams/liter. How much pure water should be boiled off to increase the salt concentration to 200 grams per liter?
Click here to see answer by stanbon(57962)

Question 566792: $6.00 is what percent of $8.00
Click here to see answer by jim_thompson5910(28708)

Question 566845: How do you set up this problem: A grocer mixes peanuts that cost $2.69 per pound and walnuts that cost $4.29 per pound to make 100 pounds of a mixture that costs $3.49 per pound. How much of each kind of nut is put into the mixture?

Click here to see answer by solver91311(17077)

Question 567242: Translate & solve; if n pound of expensive nuts ($6.00 per pound) are mixed with 5 pound of low-cost nuts ($3 per pound) so the result will sell at $4 per pound, then solve for n .
Click here to see answer by lwsshak3(6755)

Question 567250: how many liters of pure acid must grace add to four liters of a 10% acid solution to increase the strength to 80%
Click here to see answer by josmiceli(9817)

Question 567479: Balsamic vinegar contains 5% acetic acid, so a 32-oz bottle of balsamic vinegar contains ounces of acetic acid.
Click here to see answer by josmiceli(9817)

Question 567498: Phyllis invested $10,000, a portion earning a simple interest rate of 3 1/5%
per year and the rest earning a rate of 3% per year. After 1 year the total interest earned on these investments was $312. How much money did she invest at each rate?
Click here to see answer by mananth(12270)

Question 567513: What quantity of a 55% acid solution must be mixed with a 35% solution to produce 600 mL of a 45% solution?
Click here to see answer by mananth(12270)

Question 567512: A jeweler has 5 rings, each weighing 16 g, made of an alloy of 15% silver and 85% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 80%. How much silver should she add?
Click here to see answer by stanbon(57962)

Question 567616: A Chemist needs 120 milliliters of a 21% solution but only has 3% and 27% solutions available. Find how many milliliters of 27% solution should be used to the desired solution.

Click here to see answer by Alan3354(31518)

Question 567763: a tank contains 60 gallons of 50% solution of glycerine and water. what volume of water must be added to the solution to reduce the glycerine concentration to 12%?
Click here to see answer by stanbon(57962)

Question 567775: A pharmacist wishes to mix a solution that is 4% Minoxidil. She has on hand 100ml of 3% solution and wishes to add some 6% solution to obtain the desired 4% solution. how much 6% solution should she add?
Click here to see answer by stanbon(57962)

Question 567784: what is defined as the number of parts per hundred. is the answer percentage or ratio or proportion or expression
Click here to see answer by richard1234(5390)

Question 567850: P1V1/T1=P2V2/T2 solve for V2 (Chemistry)

Click here to see answer by jim_thompson5910(28708)

Question 567911: How many pounds of sunflower seed ($.70/lb) must be mixed with raisins & nuts ($1.90/lb) to form 40 pounds of a mixture to sell at $1.00/lb?
Click here to see answer by mananth(12270)

Question 567959: a pharmacist has a 45% acid solution and a 35% acid solution. How many liters of it must be mixed to form 80 liters of a 40% acid solution?

Click here to see answer by Alan3354(31518)

Question 568267: A sum of $1350 is to be divided between two people in the ratio of 7 to 8. How much does each person receive?
Click here to see answer by mananth(12270)

Question 568264: You want 14L of fruit punch that is 10% juice. at the store, you find punch that it 15% juice and punch that is 8% juice. how much of each should you purchase?
Click here to see answer by mananth(12270)

Question 568250: ken is mixing fruit punch, it is suppose to be 30% orange juice. So far, ken has mixed two pints of cranberry juice, one pint of orange juice, amd one pint of ginger ale, how much orange juice needs to be added?
Click here to see answer by lwsshak3(6755)

Question 568328: You need to make 5 liters of a 12% acetic acid solution. Your lab stocks 5% and 20% acetic acid solutions. How many liters of each stock solution should you mix to make 5 liters of a 12% acetic acid solution?
Click here to see answer by mananth(12270)

Question 568488: How many liters of pure antifreeze (100% solution) must be added to 30 liters of a 15% antifreeze solution to get a 40% antifreeze solution?
Click here to see answer by stanbon(57962)

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