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Question 832978: I really need to figure out how to solve this problem: A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 70mlof a 2% solution, and wishes to add some 8% solution to obtain the desired 6% solution. How much 8% solution should she add?

Click here to see answer by josgarithmetic(39617)

Question 833096: Gabriel needs a 30% saline solution for a science experiment he has solutions that are 15% saline and 40% saline how much of the 15% saline solution does gaberial need to mix to make 100 ml of 30% saline solution

Click here to see answer by josgarithmetic(39617)

Question 833101: The ratio of red to blue to yellow is 2:5:1. How many pints of each color would be needed to make 46 pints of the mixture.
Click here to see answer by Fombitz(32388)

Question 833100: For extremely cold temperatures, an automobile manufacturer recommends that a 80% antifreeze and 20% water mix be used in the cooling system of a car. How many quarts of pure (100%) antifreeze and 50% antifreeze and 50% water mix should be combined to make 15 quarts of 80% antifreeze and 20% water mix?
Click here to see answer by ankor@dixie-net.com(22740)

Question 833309: How many cups of chocolate chips must be added to 60 cups of cookie dough that is 4% chocolate chips, so that the percentage of chocolate chips in the resulting mixture will be 10%?
Click here to see answer by richwmiller(17219)

Question 833375: A dairy has 200 liters of milk that is 5% butterfat. How many liters of skim milk (0%fat ) must b added to make milk that is 4% butterfat? Thank You! :D
Click here to see answer by josgarithmetic(39617)

Question 833427: tom, host of a new program called The Kitchen Gladiator, wants to mix a dip containing 5% horseradish with one containing 20% horseradish to obtain a 24oz dip containing 10% horseradish. How many ounces of the 5% dip should he use?
Click here to see answer by josgarithmetic(39617)

Question 833507: A dress needs 3 1/4 yards of fabric to make. If the matching jacket requires 5/6 less yards of fabric. How much fabric is needed for both pieces?
Click here to see answer by stanbon(75887)

Question 833704: How many kilograms of gourmet candy selling for $5.00 per kg should me mixed with 2 kg of gourmet candy selling for $3.00 per kg to obtain a mixture selling for $4.50 per kg?
I know the answer is 6 kg but I would like to see the work to learn how to label the variables, write the equation and solving it Thanks
Click here to see answer by josgarithmetic(39617)

Question 833988: How many nuts are there in a bag if the bag contains 25% pistachio 20% cashew and 10% hazelnuts. The 60 remaining nuts are walnuts.
Click here to see answer by stanbon(75887)

Question 834024: over night the price of gasoline per gallon increased from $2.50 per gallon to $5.00 per gallon. What was the percent increase?
Click here to see answer by sofiyac(983)

Question 834024: over night the price of gasoline per gallon increased from $2.50 per gallon to $5.00 per gallon. What was the percent increase?
Click here to see answer by stanbon(75887)

Question 834007: A student asked to make 50g of a 24% by mass alcohol solution. What amount of alcohol should she use? What amount of water is needed?
Click here to see answer by josmiceli(19441)

Question 834067: How much water should be added to 10 ml of 15% alcohol solution to reduce the concentration to 5%
Click here to see answer by josmiceli(19441)

Question 834206: I need help figuring out the answer to this word problem.
In a basket ball league, the Falcons won 15% of their first 20 games. In order to win 60% of the total number of games, how many more games will they have to play assuming they win only half of the remaining games?
Click here to see answer by Theo(13342)

Question 834240: It only have 80percent alcohol nedd 1000 ml of 50percent alcohol how much volume of 80 do I need and how much dist water
Click here to see answer by ankor@dixie-net.com(22740)

Question 834291: sue rides her bike at a constant speed for 6 hours, helped by a wind of 2 miles per hour. pedaling at the same rate, the trip back against the wind takes 10 hours. find the total round trip distance she travelled
Click here to see answer by josgarithmetic(39617)

Question 834308: *Use a system of equations to solve (2 variables and 2 equations)*:
In order to complete her science experiment, Merrie needs 20 liters of a solution which is 25% alcohol. The only two alcohol solutions available in the school laboratory are a solution which is 40% alcohol and another which is 15% alcohol. How many liters of each of these two solutions must she mix together to produce the required solution?
Click here to see answer by stanbon(75887)

Question 834344: How many liters of a 40% antifreeze solution must be added to a 4 liter of a 10% antifreeze solution to produce a 35% antifreeze solution?
Click here to see answer by josmiceli(19441)

Question 834470: How many liters of an 8 % solution of salt should be added to a 20 % solution in order to obtain 480 liters of an 13 % solution?

Click here to see answer by josgarithmetic(39617)

Question 834492: A merchant blends tea that sells for $4.70 a pound with tea that sells for $2.30 a pound to produce 60 lb of a mixture that sells for $3.50 a pound. How many pounds of each type of tea does the merchant use in the blend?
Click here to see answer by josgarithmetic(39617)

Question 834596: You have 4L of an 90% aqueous solution of hydrochloric acid. You want 1L of a 25% solution. How much of the stock solution do you need to use?
Click here to see answer by Edwin McCravy(20055)

Question 834612: a swimming pool can be filled in 16 hours if water enters through a pipe alone, or in 23 hours if water enters through a hose alone. if water is entering through both the pipe and the hose, how long will it take to fill the pool?
Click here to see answer by josgarithmetic(39617)

Question 834658: Fred needs 45 ml of 18% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 25% sucrose solution to get the 18% solution he wants. How much of each should Fred use? (Include units with your numerical answers.)
Click here to see answer by josgarithmetic(39617)

Question 834820: SMALL NAILS COST 1.89 PER KILOGRAM I NEED 500 GRAMS OF SMALL NAILS HOW MUCH WILL I PAY FOR THE NAILS

Click here to see answer by Alan3354(69443)

Question 834835: one bag of oranges weighs 3 pounds and 4 ounces a bag of apples weighs 65 ounces which weighs more
Click here to see answer by josgarithmetic(39617)

Question 834895: if you can jog @ 8 miles per hour and run @ 12 mph, how much have you run and jogged if you went 6 miles in 40 minutes. Please show how to set up the equation. Thank you.

Click here to see answer by josgarithmetic(39617)

Question 834839: a bag of white potatoes weighs 2 pounds, a bag of sweet potatoes weighs 16 ounces. tell me how you could rearrange the potatoes so that you have two bags of potatoes that weigh the same
Click here to see answer by ankor@dixie-net.com(22740)

Question 835006: quote the price of one liter of oil when the price for one quart is $1.25
Click here to see answer by MathLover1(20849)

Question 835031: What is the final salt concentration if 20kg of a solution containing 21 percent (m/m) salt is mixed with 10kg of a solution containing 12 percent (m/m) salt?
salt mass= 20kg x .21 kg/kg + 10kg x.12kg/kg= 4.2 kg + 1.2kg= 5.4 kg
total solution mass= 20 kg+ 10 kg= 30 kg
How do I calculate the final concentration?
Click here to see answer by Theo(13342)

Question 835052: Gorp Corp mixes raisins that cost $5 per lb with peanuts that cost $3.70 per lb. How many lbs of raisins should be combined with 10 lbs of peanuts to make a mixture worth $4 per lb?
Click here to see answer by josgarithmetic(39617)

Question 835062: Fred needs 45 ml of 18% sucrose solution to do his science experiment. He needs to mix a 15% sucrose solution with some 25% sucrose solution to get the 18% solution he wants. How much of each should Fred use?
Click here to see answer by josgarithmetic(39617)

Question 835082: Please help me solve this:
A chemist wants to create a solution that is 36% acid. How many liters of a 60% acid solution must be added to 30 liters of 19% acid solution to obtain this 36% acid mixture?
Click here to see answer by josgarithmetic(39617)

Question 835064: A candy store owner has chocolate candies worth $3.00 per pound and sour candies worth $0.75 per pound. How much of each kind of candies should she combine to get 60 lb of mixed candies worth $2.40 per pound?
Click here to see answer by josgarithmetic(39617)

Question 835100: five pounds of coffee sells $4.00. how much coffee can you buy for $2.00
Click here to see answer by rfer(16322)

Question 833558: The owners of a candy store want to sell,for $6 per pound. A mixture of chocolate covered raisins usually sells for $3 per pound, and chocolate covered macadamia nuts sells for $8 per pound. They have a 30 pound barrel of raisins. How many pounds of nuts should they mix with the barrel of raisins so that they hit their target value of $6 per pound for the mixture.
Click here to see answer by josgarithmetic(39617)

Question 835219: A physician asks that 250 ml of a 15% solution be prepared from a stock supply of 80% solution. How many milliliters of the 80% solution will be used?
Click here to see answer by josmiceli(19441)

Question 835308: A 75 liter beaker of solution contains 15 l
iters of acid. What is the percent of acid in the solution?
Click here to see answer by josgarithmetic(39617)

Question 835284: Anne had two solutions that contain 20% citric acid and 45% citric acid. How many liters of each solution must she mix to produce 20 liters of a 30% citric acid solution?
Click here to see answer by josgarithmetic(39617)

Question 835324: a vat contains 400 L of a solution that is 32% acid. how much water should be added to make a solution that is 25% acid?
Click here to see answer by josgarithmetic(39617)

Question 835433: hw much 5% acid must be added to 15% acid to get 50mL of 8% acid?
Click here to see answer by stanbon(75887)

Question 835542: A chemist want to create a solution that is 36% acid. How many liters of a 60% acid solution must be added to 30 liters of a 13% acid solution to obtain this 36% acid mixture?
Click here to see answer by josgarithmetic(39617)

Question 835711: How many grams of salt must be added to 90 grams of a 20% salt solution to make a 25% salt solution?
Click here to see answer by stanbon(75887)

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