A tank has a capacity of 15 gallons. When it is full, it contains 15% alcohol. How many gallons must be replaced with an 90% alcohol solution to give 15 gallons of 40% solution?

Q: A chemical company makes two brands of antifreeze. The first brand is 60% pure antifreeze, and the…

A: The gallons are:-

Q: A grocer is mixing 40 cent per lb. coffee with 60 cent per lb. coffee to make a mixture worth 54…

A: Given ,  A grocer is mixing 40 cent per lb. coffee with 60 cent per lb. coffee to make a mixture…

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

A: Solution Concentrations: A solution is usually described in terms of the amount of a substance…

Q: How many liters of a 60% acid solution must be added to 14 liters of a 10% acid solution to produce…

A: Given Let

Q: A store owner wants to sell 200 pounds of pistachios and walnuts mixed together. Walnuts cost 4…

A: Let x pounds of Pistachios is mixed with y pounds of Walnuts.

Q: How many quarts of pure antifreeze must be added to 2 quarts of a 10​% antifreeze solution to…

A: Find the number of quarts of pure antifreeze that must be added to 2 quarts of a 10​% antifreeze…

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

A:

Q: How many liters of 40% acid solution must be mixed with 10 liters of a 65% acid solution to get a…

A: Given Let Then according to problem

Q: A biologist has two brine solutions, one containing 5% salt and another containing 20% salt. How…

A: We can solve the problem by equating both side according to the given criteria.

Q: A food chemist wants to mix some of Mixture A, which contains 10% sugar, with some of Mixture B,…

A:

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

A: Given A chemical company makes two brand of antifreeze The first brand is 35% pure antifreeze, and…

Q: In order to prepare some liquid medicine properly you need to mix 32 ML of liquid antibiotics with…

A:

Q: A chemist wishes to make 100 liters of 3% acid solution by mixing a 2% solution with a 5% solution.…

A: Let amount of 2% solution be x and amount of 5% be y. As we know we have to make 100 liters of…

Q: A farmer has two types of milk, one that is 20% milkfat and one that is 12% milkfat.  How much of…

A:

Q: A candy distributor needs to mix a 40% fat-content chocolate with a 60% fat-content chocolate to…

A: Given: Two types of chocolates one with 40% fat content and the other one with 60% fat content…

Q: How many gallons of 35% alcohol solution and 50% alcohol solution must be mixed to get 12 gallons of…

A: Here we will find the no of gallons of 35% alcohol solution and 50% of alcohol solution required to…

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 quarts of pure anti freeze must be added to 6 quarts of a 10% anti freeze solution to…

A: Let x denote the amount of pure antifreeze that must be added to 6 quarts of a 10% antifreeze…

Q: A chemical company makes two brands of antifreeze. The first brand is 60% pure antifreeze, and the…

A: Let x gallons of first brand and (150-x) gallons of second brand be used  to obtain 150 gallons of a…

Q: How many litres of a 10% alcohol solution must be mixed with 10 litres of a 34% alcohol solution to…

A: Given that  10% alcohol solution must be mixed with 10 litres of a 34% alcohol solution to get a 13%…

Q: How much water must be evaporated from 240 gallons of a 3% salt solution to produce a 5% salt…

A: Let  the amount of water to be evaporated be x first we have 240 gallons of 3% salt i.e 7.2 gallons…

Q: How many gallons of 25% alcohol solution and 45% solution must be mixed together to get 7 gallons of…

A: To determine the gallons of 25% alcohol solution and gallons of 45% alcohol solution must be…

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

A:

Q: How many quarts of pure antifreeze must be added to 4 quarts of a 30​% antifreeze solution to obtain…

A:

Q: How many quarts of pure antifreeze must be added to 3 quarts of a 40% antifreeze solution to obtain…

A: ⁸

Q: If it takes 8 quarts of ice cream to feed 30 people, how many gallons of ice cream will it take to…

A: Let it will take x quarts  to feed 75 people.

Q: A chemist wants to make 50ML of 16% acid solution by mixing a 13% acid solution and an 18% acid…

A: Let x be the   millilitre of 13% solution And y be the millilitre of 18% solution Chemist wants to…

Q: A grocer mixes two kinds of nuts that cost $3.88 per pound and $4.88 per pound, to make 100 pounds…

A:

Q: The manager of a gardening center needs to mix a plant food that is 13% nitrogen with one that is…

A:

Q: If it takes 4 men 6 hours to landscape a recreation area, how many hours will it take 3 men to…

A:

Q: One bag of potting soil contains 8 quarts of soil. How many clay pots can be filled from one bag of…

A: We have to find that how many clay pots can be filled from one bag of potting soil. Given - 1 bag of…

Q: How many pounds of a 4% solution of borax must be added to 24 pounds of a 12% solution of borax to…

A:

Q: A tank contains 8000 liters of a solution that is 40% acid. How much water should be added to make a…

A:

Q: How much of a 90% orange juice drink must be mixed with 12 gallons of a 40% orange juice drink to…

A: To be found : Amount of a 90% orange juice drink must be mixed with 12 gallons of a 40% orange juice…

Q: A photographer wants to mix 4 liters of a 6% acetic acid solution with a 10% solution to get a 7%…

A: Let x be the amount of 10% solution required.So, according to question:0.06(4) + 0.1x=0.07(x+4)

Q: How many quarts of pure antifreeze must be added to 6 quarts of a 30​% antifreeze solution to obtain…

A: Definition used-   Word problem with one unknown – First we write the equation in terms of an…

Q: A chemist has three acid solutions at various concentrations. The firs is 10% acid, the second is…

A:

Q: One and one half ounces of a medication are required for a 140 pound adult. At the same rate, how…

A: Given  Medication required for 140 pound adult = 1.5 ounces Let the medication required for 238…

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

A:

Q: A radiator contains 5 quarts of a mixture of water and antifreeze. If 19% of the mixture is…

A: A radiator contains 5 quarts of mixture of water and antifreeze.If 19% of the mixture is antifreeze,…

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: How many liters of a 40% alcohol solution must be mixed with 25 liters of a 89% alcohol solution to…

A:

Q: A photographer wants to mix 2 liters of a 5% acetic acid solution with a 10% solution to get a 7%…

A: Let x be required amount of 10% solution.

Q: What quantity of 80% acid solution must be mixed with a 20% solution to produce 400ml of a 60%…

A: Given we need to form a 400 ml of a 60% solution by mixing 80% acid solution with 20% solution.Let…

Q: What quantity of 70 percent acid solution must be mixed with a 30 percent solution to produce 600 mL…

A:

Q: A brand of coffee beans cost 150 pesos per kilo, while the premium coffee beans cost 675 pesos per…

A: mixtures

Q: A mixture of 16% disinfectant solution is to be made from 14% and 22% disinfectant solutions. How…

A: Let x gallon of 14% were used. So, (16-x) gallons of 22% are needed. Because total amount is 16…

Q: What quantity of a 70% acid solution must be mixed with a 40% solution to produce 150 mL of a 60%…

A: Given.

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 chemist has three different acid solutions. The first acid solution contains 20%20% acid, the…

A: Explanation: Suppose,  Given that,  Using 3 times as much of the 50% solution as the 30% solution.…