A 100 gallon tank is filled with brine containing 60 pounds of dissolved salt. Water runs into the tank at the rate of 2 gallons per minute and the mixture, kept uniform by stirring, runs out at the same rate. How much salt is in the tank after 1 hr?

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

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A: It is given that patient injects 65 units and 10ml/vial=100 units/ml

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

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Q: A 600 gallon brine tank is to be cleared by piping in pure water at 1 gal/min. , and allowing the…

A: Let S be pounds of salt in tank at time t, so: or Rewritting the equation above we get:…

Q: Initially a tank holds 100 gal of a brine solution containing 4 lb of salt. At t = 0, brine…

A: We will find out the required time.

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A: Let M(t) be the mass of the organic material in the tank at time t and Mt=CtVt, where C(t) and V(t)…

Q: A vintner fortifies wine that contains 10% alcohol by adding a 70% alcohol solution to it. The…

A: The Final mixture is 1000 liters which is 16 x alcohol so, It contain 0.16 multiply 1000 = that is…

Q: a 400 gal tank initially contains 100 gal of brine containing 25 lb of salt. Brine containing 2 lb…

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Q: A 60 kg individual needs to work at a MET level of 8 to reach her target heart rate.  If the…

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Q: Calculate the amount of Lidocaine required to compound 1 ounce of 2% (w/w) lidocaine dental gel.…

A: Solution:Part-IGiven:- Lidocain dental gel = 1 ounce                                             =…

Q: A small metal bar, whose initial temperature was 20° C, is dropped into a large container of bowling…

A: Let T(t) be the temperature of the bar after t time Given that T(0)=200C T(1)=220 C

Q: A hose fills 2/8 of a pool in 3/6 of an hour. At this rate, how much of the pool will these hose…

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Q: A pot contains 6 L of brine at a concentration of 120 g/L. How much of the water should be boiled…

A: Given, A pot contains 6 L of brine at a concentration of 120 g/L.

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Q: At 9 p.m., a cylinder containing 240 liters of brine in which 12kg of salt is dissolved. Brine…

A: We will find how much salt in the cylinder is by 9.30

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Q: In a nuclear power plant, a 1.0 kg of water at 74.5 °C is converted into 1.0 kg of steam at 115 °C.…

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Q: A tank contains 80 gallons of pure water. A brine solution with 2lb/gal of salt enters at 2 gal/min,…

A: Given: r1=2 galsmin., r2=2 galsmin.,  c1=2 lbsgal,, v0=80 gallons, x0=0

Q: A 450 gal tank initially contains 110 gal of brine containing 52 Ib of salt. Brine containing 1lb of…

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Q: A tank contains 80 gallons (gal) of pure water. A brine solution with 2 lb/gal of salt enters at 2…

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Q: A worker uses 450 inches of steel wire to make 300 springs of the same size. At this rate how many…

A: Let he needs ' x ' inches for making 1 spring.

Q: An empty Boeing 747 weighs about 175 tons. How much does it weigh in ounces? If this same Boeing 747…

A: Part (a) - Weight of Boeing 747 = 175 tonsWe know that,1 ton = 32000 ouncesThen,175 ton = 175×32000…

Q: A hair dye is made by blending 7% hydrogen peroxide solution and a 4%hydrogen peroxide solution. How…

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Q: A biologist has two brine solutions, one containing 10% salt and another containing 70% salt. How…

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Q: A tank contains 100 L of water. A salt solution containing 2 kg of salt per liter flow in at the…

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Q: A 300 gallon tank initially contains 90 gallons of brine containing 400 Ibs. of salt. Brine…

A: Given the tank contains 90 gallons of brine containing 400 lbs of salt.  The above figure shows the…

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Q: The side of a cube decreases at a rate of 10 m/sec. Find the rate at which the volume changes, when…

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Q: . A small metal bar, whose initial temperature was 20° C, is dropped into a large container of…

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Q: How long will it take to purge a 15ft section of 6in pipe with a flow rate of 35cfh

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Q: A 150 mg per L solution of drug is administered intravenously at a rate of 30 mL per hr to a patient…

A: Given that: A 150 mg per L solution of drug is administered intravenously at a rate of 30 mL per hr…

Q: How much water must be evaporated from 240 mL of a 10% salt solution to produce a 25% salt solution?

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Q: A radiator has 13 L of a 35% antifreeze solution. How much must be drained and replaced by pure…

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

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

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

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Q: A pot contains 5 L of brine at a concentration of 80 g/L. How much of the water should be boiled off…

A: Let x = liters of water to be boiled off.