4 gal/min 5 gal/min

Q: A biologist has two brine solutions, one containing 7% salt and another containing 28% salt. How…

A:

Q: Two pools are being filled with water. To start, the first pool contains 773 liters of water and the…

A: Let 'x' be the number of minutes

Q: A store sells two kinds of candles, scented and unscented. The scented burn 1/12 inches in 20 mins.…

A:

Q: Aa family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the…

A: Given that Fuel efficiency of first car=30 miles Fuel efficiency of second car=40 miles Combined…

Q: A concentrated solution contains 10% salt. How many liters of this solution does Mary need to add to…

A:

Q: the lab, elsa had two solutions that contain alcohol and is mixing them with each other. she uses…

A: Topic:- algebra

Q: 120-gallon tank initially contains 80 lbs. of salt dissolve in 90 gal of water. Brine containing…

A: To determine the amount of salt in the tank after 40 minutes.

Q: A cup of coffee contains 150mg of caffeine. If caffeine is eliminated from the body at the rate of…

A: If A0 is initial amount of caffeine in cup of coffee then amount of caffeine in body at time t…

Q: The nutrition information on the cereal box says that a 1/3-cup serving provides 100 calories and 2…

A: We have to find amount of calories and fibers for given cups.

Q: In a mixing vat there are initially 100 litres of volatile liquid. 3 litres of fresh liquid are…

A: Solution

Q: is twice the length of Tank B and the length of Tank B is twice the length of Tank C. Mr Muhamad…

A:

Q: A tank contains 2,000 gallons of brine. Brine containing 5 lb/gallon of salt flows in at a rate of…

A:

Q: Dakota's body metabolizes caffeine at a rate of 13.1% per hour (so the amount of caffeine in…

A: Given in the question, Dakota's body metabolizes caffeine at a rate of 13.1% per hour.

Q: A tank initially contains 50 gallons of brine, with 30 pounds of salt in solution. Water runs into…

A: This question is related to differrential equations, We will solve it using given information.

Q: A biologist has two brine solutions, one containing 4% salt and another containing 20% salt. How…

A:

Q: Fifty ounces of pure grapefruit juice are added to 25oz of a fruit punch that is 10% grapefruit…

A: Given, 50 ozof pure grapefruit juice are added to 25 oz of a fruit punch that is 10 % grapefruit…

Q: Tank A and Tank B contained an equal volume of water at first. After 20% of the water in tank A was…

A: vv

Q: There are originally 245 foxes and 124 rabbits on a reserve. The fox population grows a rate of 30…

A:

Q: Two marathon runners Gian and Erich, participated in a long-distance race of 40 km. They started at…

A: Let the speed of Gan be x km/hourSo, speed of Erich =(x-2) km /hourTotal distance =40 kmTime taken…

Q: At a birthday party, there is a 750 g chocolate cake and a 600 g carrot cake. At the party, 50% of…

A: There are 750 g chocolate cake and 600 g carrot cake. The total weight of the cake w is: w=750+600…

Q: In, a culture, bacteria increases at the rate proportional to the number of bacteria present. If…

A:

Q: Thirty gallons of a 20% acid solution is needed for an experiment. Only 40% and 10% acid solutions…

A: Given: 30 gallons of a 20% acid solution.

Q: In the lab, Mary has two solutions that contain alcohol and is mixing them with each other. She uses…

A: Given problem:- In the lab, Mary has two solutions that contain alcohol and is mixing them with each…

Q: A sample of Oriental ginseng contains 0.4 mg of active constituents in each 100 mg of powdered…

A: A sample of Oriental ginseng contains 0.4 mg of active constituents in each 100 mg of powdered…

Q: ustin left for a long walk at a rate of 4.8 km/hr. Two hours later, Jim started his walk at a rate…

A: When Jim will catch Justin at that time both will travel equal distance , but both travel equal…

Q: A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the…

A: Total gas consumption in the given week is 40 gallons.

Q: Two closed-lid tanks are connected in series. The first tank initially contains 100 grams of salt…

A:

Q: A perfectly stirred tank initially contains 200 kg of a solution (20 % sugar-A, 5 % citric acid-B…

A: Study the problem carefully and multiply the weight and percentage of concentration with it…

Q: A chemical company makes two brands of antifreeze. The first brand is 40% pure antifreeze, and the…

A: First Brand is 40% pure antifreeze. Second Brand is 65% pure antifreeze. We have to find the number…

Q: At a bakery two people can frost a total of 50 cupcakes in 12 minutes. Assume that all people work…

A: It is given that two people frost 50 cupcakes in 12 minutes. Since the work rate of all the people…

Q: An automobile radiator holds 18 liters of fluid there is currently a mixture in the radiator that is…

A: Solution is below

Q: Under certain water conditions, the free chlorine (hypochlorous acid, HOCI) in a swimming pool…

A: According to the decay law/uninhibited decay law:  A=A0 ek·t, where A0 is the initial amount. Given:…

Q: An apple farm yields an average of 46 bushels of apples per tree when 24 trees are planted on an…

A: The farm yields 46 bushels of apple per tree when 24 trees planted per acre 1 bushel yield is…

Q: In 2000 the population of the United States was 280 million and the number of vehicles was 200…

A: Given: In  2000 population 280 million r=1% and Vehicles was  200 million growth rate r=3% To find…

Q: Two pools are being filled with water. To start, the first pool contains 808 liters of water and the…

A: Initial amount of water in first pool is 808 liters. Initial amount of water in second pool is 0…

Q: A bottle containing half a cubic meter of a potent drug is half empty. Nurses give doese of 400 cc…

A: the size of the bottle is 0.5 m3 as we know,  1m3=1000000 cm3 therefore 0.5m3=0.5·1000000 cm3…

Q: A 500 gal capacity tank initially contains a salt solution consisting of 200 gal of water and 3 lbs…

A: According to question, Capacity of tank = 500 gal.

Q: Ben is walking with his backpack. If Ben is 65 kg, walking at a rate of 2 m/s and his backpack is…

A: Given  Mass of Ben m1= 65 kgvelocity v=2m/s.Mass of backpack m2=0.5 kg

Q: A man invests his savings in two accounts, one paying 6 percent and the other paying 10 percent…

A:

Q: A chemist needs 16 liters of a 25% acid solution. The solution is to be mixed from three solutions…

A:

Q: A barista needs to mix a 20% coffee solution with concentrated coffee (100%) to produce 9 liters of…

A: Let x liters of 20% coffee solution is mixed with y liters of 100% coffee solution. Total volume of…

Q: Sugar dissolves in water at a rate proportional to the amount still undissolved. If there were 70 kg…

A: The amount of sugar present initially is 70 kg and at the end of 4 hours only 30 kg is left. The…

Q: An experiment calls for a 5% salt solution. Only a 3% salt solution and an 8% salt solution are…

A: An experiment calls for a 5% salt solution. Only a 3% salt solution and an 8% salt solution are…

Q: Deandre's body metabolizes caffeine at a rate of 13.4% per hour (so the amount of caffeine in…

A: Given Deandre's body metabolizes caffeine at a rate of 13.4% per hour.  => the amount of caffeine…

Q: A certain antihistamine is often prescribed for allergies. A typical dose for a 100​-poundperson is…

A:

Q: A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the…

A:

Q: consumption

A:

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

A: Here our objective is to find the additional oz requirement, which can be found as below

Q: A 1 20-gallon tank initially contains 80 lbs. of salt dissolve in 90 gal of water. Brine containing…

A: From given 120-gallon tank initially contains 80 lbs of salt that dissolve in 90 gal of water. Brine…

Q: A chemical company makes two brands of antifreeze. The first brand is 70% pure antifreeze, and the…

A: We will use the concept of mixtures to solve this problem