A 100 gallon tank initially contains 10 gallons of fresh water. At t = 0 a brine solution containing 1 pound of salt per gallon is poured into the tank at the rate of 4 gal/min., while the well-stirred mixture leaves the tank at the rate of 0.5 gal/min. Find the amount of salt in the tank at the moment of overflow. Enter answer as numerical decimal correct to two decimal places. pounds.

For a nonsmoker, the biological half-life of theophylline is 8 hours. Find the amount of the drug retained in a nonsmoker's system 14 hours after taking a one-unit dose. (Round your answer to three decimal places.) units

Water is flowing from a hose at the rate of 1.2 pints per second. What would the flow rate be in quarts per minute? (conversion 1qt/2pt)

Determine the value of the constant k, such that 8 4 Sdx = 1.90038. 2x-1 k Give your answer correct to 3 decimal place. k=

Solve the following equation for the unknown variable and round to 2 decimal places if necessary:

An IV medication of 245 mL is to infuse at the rate of 40 mL/hr. What is the total infusion time? hr  min

Each row represents an experimental “run” (in this case, averaged sample of mango wine). Column A shows the run number; Column B shows the percentage of ethanol; Column C shows the amount of glycerol (in g/L); Column D shows the amount of acid (in g/L); Column E shows the temperature of the run (in °C); and Column F shows the pH of the run. Y represents Ethanol of mango wine. 1. Create a scatterplot of the ethanol data for all 20 runs  a. Draw a graphical representation of the model that you chose to use. b. Comparing the model to your data, evaluate its fit in one or two sentences. (Not sure what this question is getting at. I've provided all the information given) c. Replace the generic Yi = β0 + ε with the information you have here. Please help. I have no idea what this even means or where to start. HERE is the attached dataset to start with;    a          b             c              d            e           f Run Ethanol Glycerol Acidity Temp pH 1 4.8 3.5 0.84 24 3.8 2 9.6…

Evaluate the formula t= when u = 132, n= 13, x= 127, and s = 10 %3D t3= (Round to three decimal places as needed.)

Number 69 pls

A 45% sucrose solution lost 250 mL by evaporation. After evaporation what is the sucrose concentration in the remaining 300 mL? Round your final answer to 2 decimal places if necessary.