A pot contains 6 L of brine at a concentration of 120 g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?

Q: A new energy drink advertises 106 calories for 7oz. How many calories are in 21oz of the drink?

A: Given that a new energy drink advertises 106 calories for 7oz That is for 7oz energy drink…

Q: It takes 57 pounds of seed to completely plant a 6-acre field. How many pounds of seed are needed…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: A radiator has 16 L of a 36% antifreeze solution. How much must be drained and replaced by pure…

A: Let x be the amount of 36% antifreeze to be drained and replaced with pure antifreeze.Then 16 - x is…

Q: A prescription reads for Erythromycin 150 mg every 6 hours for 10 days. You have on hand…

A: You have on your hand Erythromycin 250 mg/ml and you need Erythromycin 150 mg for one dose. So you…

Q: The current cost of gas is 98.5 cents/L. if your car holds 60L,how much in dollars would it cost to…

A: We have to find the cost for car fuel tank.

Q: Nine ounces of an insecticide are mixed with 15 gal of water to make a spray for spraying an orange…

A:

Q: A person running at 45 kilometers per hour (KPH) is riding a train at 120 KPH going to Manila. Who…

A: Given that , Speed of a person = 45KPH  Speed of a train = 120KPH  Because, we have same unit of…

Q: At 1:00 p.m.., oil begins leaking from a tank at a rate of (4 + 0.75t) gallons per hour. , answer…

A: At 1:00 p.m.., oil begins leaking from a tank at a rate of (4 + 0.75t) gallons per hour. , Let time…

Q: A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.

A:

Q: How much salt is in the tank after 30 minutes?

A: From the sub part (a), the function is obtained as, y(t) =24e-t100. Therefore, calculate the amount…

Q: A gallon of paint covers about 400 square feet. How thick is the layer of paint on the wall ? What…

A: We will use concept of volume to solve it.

Q: A hose fills a hot tub at a rate of 2.99 gallons per minute. How many hours will it take to fill a…

A: Introduction: When the rate at which work is done is given, we can find the time to complete the…

Q: How many ounces of water evaporated from 50 oz of a 12% salt solution toproduce a 15% salt solution?

A: Multiplying the amount of solution and percentage of the solution is the amount of pure solution.

Q: A candle on Pauline dresser is 4 inches tall.and burns at a rate of 0.6 inches per hour . How many…

A: Topic - equation in one variable

Q: An IV drip was ordered for a patient. At the start the bag contains 1,134 mL, after 2 hours, the bag…

A:

Q: A hose fills a hot tub at a rate of 3.58 gallons per minute. How many hours will it take to fill a…

A:

Q: A solution of pure antifreeze is mixed with water to make a 65% antifreeze solution. How much of…

A:

Q: A student needs 406 mL of 1.38 M sodium nitrate solution. If the stock solution is 2.56 M, how much…

A:

Q: Hey laptop computer consumes about 20 W of electricity per hour when operating at 10 since per kilo…

A: Given, Power consumption of a laptop is 20 watts of electricity per hour. It is uses for 5 hours.

Q: How many mililiters of pure chocolate must be added to 150 ml of chocolatetopping that is 50%…

A: Let x mililiters of pure chocolate must be added So the total amount of the mixture is (x+150) ml.…

Q: The masses of two similar round mooncakes are 250 g and 54 g respectively.   If the mass of the…

A:

Q: A swimming pool is 20 ft wide, 40 ft long, 6. 12 1 If the pool is being filled at a rate of 0.7 ft…

A: Given The length, width, and deep of the pool is 40 ft, 20 ft, and 3 ft respectively. The deepest…

Q: A 510 mL IV bag contains a 30% dextrose solution. How much of the original solution must be replaced…

A: Given that a 510 mL bag contains a 30% dextrose solution. The original solution is replaced with a…

Q: A car owner buys 360 TL for gas every month, and since he bought 72 and 60 liters of gasoline in the…

A: We have to find average price

Q: In 100 yrs, 132mg of radium decomposes to 96mg. How many mg will be left after 200 yrs?

A:

Q: A deep-dish apple pie, whose internal temperature was 220°F when removed from the oven, was set out…

A: Given: Apple pie's internal temperature=220oF After 15 minutes later pie's internal temperature…

Q: How many calories per day does a person who weighs 80 kilograms (approximately 176 pounds) need to…

A: Given, A person weighs 80 kilograms. To find how many calories per day a person needs: The function…

Q: An ice cream cone is left sitting in the hot sun. Matty notices that the ice cream melts and loses…

A: NOTE: Refresh your page if you can't see any equations. . here the half-life is given so use the…

Q: A laptop uses 20 watts of electricity per hour when operating, At  10 cents per kilowatt hour, how…

A: Electricity consumption by laptop = 20 watt per hour total operating time = 5 hour So, total…

Q: How much water must be evaporated from 17 qt of a 45% antifreeze solution to produce an 85%…

A: Given,       Water must be evaporated from 17 qt of a 45% antifreeze solution to produce an 85%…

Q: Each of the Space Shuttle's solid rocket motors burns 680,400 kilograms of propellant in 2.5…

A:

Q: How many mL of solution will be infused in 4 hours if the flow rate is 20mL/h?

A:

Q: A pharmacist needs to make 400 mL of a 3% KCl solution by diluting a 6% KCl solution. How many mL of…

A: The initial percentage = 6%  The final percentage=3% So the percentage of KCI decreased by final…

Q: A 500 mL IV starts at 9pm and runs at 33gtt/min with a drop factor of 10gtt/mL.  At what time will…

A: Algebra Question

Q: A 22-inch candle burns down in 11 hours. At what rate does the candle burn, in inches per hour?

A: Given a  234-inch candle burns down in 11 hours. We have to find the rate at which the candle burns,…

Q: An ice cream cone is left sitting in the hot sun. Matty notices that the ice cream melts and oses…

A: Given query is to find the volume of cone after 27 min.

Q: About 27% of the body of a person floating in the Dead Sea will be above the water line. Assuming…

A: Mass= density× volume

Q: How many times more energy does a 450-nm blue photon have than a 656-nm red photon?  answer to three…

A:

Q: By noon, the temperature in Buffalo had risen by 16 °F. What was the temperature there at noon?

A: We have to answer the questions using the given table.

Q: The half-life of Sodium-24 is 14.96 hours. If a sample contains 490 mg, how many mg will remain…

A:

Q: A water barrel has a total volume of 1.25 cubic meters (m3). Use the fact that 1 foot is…

A: Given that: Total volume of barrel, V = 1.25m3

Q: How much water should be evaporated from 40% v/v alcohol in order to prepare 3000 ml of 60% ( v/v)…

A:

Q: What is the annual fuel cost for a car driving 26,000 km per year with a fuel rating of 9.7 L/ 100…

A:

Q: A hair dye is made by blending 14% hydrogen peroxide solution and 8% hydrogen peroxide solution. How…

A: Let the quantity of 14% hydrogen peroxide is x millilitres, then the quantity of 8% hydrogen…

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

A: Let x be the amount in liters of mixture of concentration 20% and y be the amount in liters of…

Q: One mole of gas expands isothermically to double its volume. If the gas temperature is 340 k what…

A:

Q: A mountain climber is about to haul up a 50-m length of hanging rope. How much work will it take if…

A: It is given that the mountain climber is about to haul up a 50-m length of hanging rope.Find the…

Q: . A hose fills a hot tub at a rate of 4.5 gallons per minute. How many minutes will it take to fill…

A:

Q: A patient is drinking  0.6 pint of orange juice every two hours. At this rate, how many quarts of…

A:

Q: If the diameter of a piece of candy was initially 26 mm and after 30 minutes it measured 5mm, what…

A:

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.