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The volume of two tanks are V1 =100 gallons and V2 = 200 gallons .The inflow and outflow rates of the system are r = 10 gallons per minute. Suppose that the two tanks both contain fresh water initially, but the inflow to tank 1 is brine at 2 pounds per minute, so that 2 pounds of salt flow into tank 1 each minute. Write a matrix system of equations for the amounts and of salt in the two tanks after t minutes. Solve the system using matrix methods. Calculate how long it takes for tank 2 to have a salt concentration of 1 pound per gallon.
Please remember to calculate the eigenvalue using det |A-lambda*I|
When solving a rational equation why is it ok to remove the denominator by multiplying both sides of the LCD and why can you not do the same operation when simplifying a rational expression. Why are there two solutions in quadratic equations?
A firm pays $1.75 for each copy of a magazine and sells each one for $2.50. There is a fixed monthly cost of $40 for printing the publication. If the firm wants to make $550 dollars next month, how many magazines do they have to sell
Solving the equation and rationalizing the denominator
Hamlet has a credit card balance of $4172.26 with an annual percentage rate of 23.2%. His card requires a minimum payment of 2% of the balance. What is his minimum payment?
After x weeks, the number of people using a new rapid transit system was approximately. At what rate was the use of the system changing with respect to time after 8 weeks?
Simplify the algebraic expression 3x 2 - 2y + 7x 2 - 5y + 3 and evaluate it for x = 2, y = 14. Identify the variables, constants, and coefficients in the simplified expression.
find the measure of an angle whose complement is eight times its
let f be a multivariable function defined by fx y x3y - x2y2 where x and y are real numbers. choose the same point to
Solve equation in single variable
Solve the quadratic and algebraic expressions
What for steps should be used in evaluating expressions? Can these steps be skipped or rearranged? Explain your answers.
Identify the four properties of real numbers used in evaluating an expression. Explain why it is necessary to master the order of operations and the laws of operations before solving an equation.
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