A pharmacist needs 20 liters of a 2% saline solution. He has a 1% and a 5% solution available. How many liters of the 1% and how many liters of the 5% solutions should he mix to make the 2% solution?

Q: Max has 5 times as many baseball cards as Paul. If Paul had 28 more baseball cards, the two boys…

A: Max has 5 times as many baseball cards as Paul. If Paul had 28 more baseball cards, the two boys…

Q: A chemist mixes different solutions. By weight, she mixes 30% of a sample of substitute A and 60% of…

A: We have to find the weight of substitute C in grams. This question can be done using percentage…

Q: Dorren Schmidt is a chemist. She needs to prepare 13 ounces of a 9 percent of hydrolic acid solution…

A:

Q: The number of tons of wheat the government can afford to buy if it spends a total of $100 million,…

A: Topic = Algebra

Q: A scientist mixes water (containing no salt) with a solution that contains 45% salt. She wants to…

A:

Q: How many gallons of a 4% salt solution must be mixed with 65 gallons of a 26% solution to obtain a…

A:

Q: A pharmacist has two vitamin-supplement powders. The first powder is 20% vitamin B1 and 30% vitamin…

A:

Q: A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive…

A: Given: Water and antifreeze are mixed to obtain 240 gallon of mixture with 55% antifreeze. The…

Q: How many ounces of each of a 60% salt solution and a 30% salt solution should be mixed to obtain 270…

A:

Q: Luke was helping the cafeteria workers pick up lunch trays, but he could only carry six at a time.…

A: We have to find that how many trips he will make.

Q: How many gallons of a 10% antifreeze solution and a 20% antifreeze solution must be mixed to make 10…

A: How many gallons of a 10% antifreeze solution and a 20% antifreeze solution must be mixed to make 10…

Q: A family has two cars. During one particular week, the first car consumed 40 gallons of gas and the…

A: Let x gallons of gas be consumed by first car and y gallons of gas be consumed by second car.

Q: How many gallons  of a 6% salt solution must be mixed with 10 gallons  of a 8% solution to obtain a…

A: Let x denote Gallon. So, gallons of a 6% salt solution are calculated as (x gal) (6%).

Q: A candy distributor needs to mix a 30% fat-content chocolate with a 60% fat-content chocolate to…

A: Explanation of the answer is as follows

Q: Find how many quarts of 6% butterfat milk and 1% butterfat milk should be mixed to yield 75 quarts…

A:

Q: A chemist needs to mix a 12% acid solution with a 32% acid solution to obtain an 8‐liters mixture…

A:

Q: A chemistry teacher needs to mix a 40% salt solution with a 80% salt solution to make 20qt of a 50%…

A: Let the required amount of 40% salt solution be x quarts.

Q: A scientist mixes water (containing no salt) with a solution that contains 20% salt. She wants to…

A: According to the question: Let, “x” = ounces of water used and “y” = ounces of solution used Then,…

Q: How many gallons of a 57% salt solution do we need to mix with 120 gallons of a 30% salt solution so…

A:

Q: The court alchemist needs to prepare a 20 ounces of a 12% hemlock solution to give to the young…

A:

Q: A chemist needs to make 2 liters of a 15% acid solution from a 10% acid solution and a 35% acid…

A: Let x liter of 10% solution  and y liter of 35% solution used to make 15% of 2 liters

Q: how many gallons (of the 80 percent rum) do you need to add?

A:

Q: In a candy shop, chocolate which sells for $4 a pound is mixed with nuts which are sold for $2.50 a…

A:

Q: You have a container of 42% acid solution, a container of 92% acid solution, and a 2 liters of pure…

A:

Q: If Gabriel has 3 times as many nickles as dimes and they have a combined value of 125 cents, how…

A: Assume number of dimes = x and number of nickles = 3x

Q: Sam has half again as many apples as Katie, while together Sam and Katie have 80 more apples than…

A:

Q: If Mikayla has 3 more quarters than nickels and they have a combined value of 285 cents, how many of…

A: Topic:- algebra

Q: How many gallons of a 80​% antifreeze solution must be mixed with 100 gallons of 15​% antifreeze to…

A:

Q: A chemist needs 12L of a 40% alcohol solution. She must mix a 12% solution and a 50% solution. How…

A:

Q: A chemist needs to mix a 12% acid solution with a 20% acid solution to obtain 160 ounces of a 15%…

A: Given: A chemist needs to mix a 12% acid solution with a 20% acid solution to obtain 160 ounces of a…

Q: Jake & Gabby want to mix a 10% acid solution with a 30% acid solution to create 10 liters of a 15%…

A:

Q: a scientist mixes water (containing no salt) with a solution that contains 20% salt. she wants to…

A: Given:  A scientist mixes water (containing no salt) with a solution that contains 20% salt. she…

Q: A family has two cars. During one particular week, the first car consumed 30 gallons of gas and the…

A:

Q: Paul has 12 coins in his pocket, consisting entirely of dimes and quarters. If he has a total of 240…

A: Given, Paul has 12 coins in his pocket, consisting entirely of dimes and quarters and he has a total…

Q: Jotham needs 70 liters of a 50% alcohol solution. He has a 30% solution and an 80% solution…

A: Total liters=70 Types of solutions= 30%, and 80%

Q: Find how many quarts of 6% butterfat milk and 3% butterfat milk should be mixed to yield 45 quarts…

A: Solution: The objective is to find how many quarts of 6% butterfat milk and 3% butterfat milk should…

Q: How many gallons of a 4% salt solution must be mixed with 75 gallons of a 6% solution to obtain a 5%…

A:

Q: A 40% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 150…

A: GIVEN: A 40% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get…

Q: A chemical company makes two brands of antifreeze. The first brand is  35% pure antifreeze, and the…

A: To work out the amounts of the two components (brands) satisfying the given data

Q: A chemist needs to mix an 18% acid solution with a 45% acid solution to obtain 12 liters of a 36%…

A: Consider x is the amount of 18% solution, that is 18% of x =18100×x=0.18x So according to the…

Q: A pharmacist wants to mix a 30% saline solution with a 10% saline solution to get 200 mL of a 12%…

A: Let x be the amount of 30% saline solution and y be the amount of 10% saline solution.

Q: Find how many quarts of 4% butterfat milk and 1% butterfat milk should be mixed to yield 30 quarts…

A: quarts 4% of butterfat milk and 1% butterfat milk should be mixed to yield 30 quarts of 2% butterfat…

Q: A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive…

A:

Q: Find how many quarts of 5% butterfat milk and 2% butterfat milk should be mixed to yield 45 quarts…

A:

Q: One brand of cleaner used to etch concrete is 25% acid. A stronger industrial-strength cleaner is…

A: Let x gal of brand of cleaner and y gal of stronger industrial-strength cleaner should be mixed to…

Q: Mary has half as many pebbles as Peter. James has three times as many pebbles as Mary and Jude has a…

A:

Q: Joy needs to mix a 10% saline solution with a 40% saline solution to create 200 millileters of a 13%…

A:

Q: A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the…

A: Calculation:Let a be the first brand gallons of 45%  antifreeze needed and b be the second brand…

Q: A sparkling-water distributor wants to make up 200 gal of sparkling water to sell for $5.00 per…

A:

Q: A​ sparkling-water distributor wants to make up 200 gal of sparkling water to sell for $5.00 per…

A: Given Data: The amount of sparking water distributor wants to make is: A=200 gal The selling cost of…