Question: Solve each problem using the Gauss-Jordan method to solve a system of equations. A 5% solution of a drug is to be mixed with some

Solve each problem using the Gauss-Jordan method to solve a system of equations.

A 5% solution of a drug is to be mixed with some 15% solution and some 10% solution to make 20 ml of 8% solution. The amount of 5% solution used must be 2 ml more than the sum of the other two solutions. How many milliliters of each solution should be used?

Step by Step Solution

★★★★★

3.43 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let x the amount of 5 solution y the amount of 15 solution z ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related College Algebra Questions!

Solve each problem using the methods outlined in this chapter. 1. Solve for F1: 30.0F1 = (14.0) (18.0) + (25.0) (17.0) 2. Solve for Fw: (12.0) (15.0) + 45.0Fw = (21.0) (65.0) + (22.0) (32.0) 3. Two...

A system of equations that has at least one solution is called consistent. A system of equations that has no solutions is called inconsistent. A system with infinitely many solutions is called...

Solve each problem using a system of equations in two variables. Find two numbers whose sum is -17 and whose product is 42.

4A Name___________________________________ SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 1) Find the result of performing the elementary row...

Module 4 - Case SYSTEMS OF EQUATIONS AND INEQUALITIES Assignment Expectations Complete the following problems using the Case 4 Answer Template. 1.What are the 3 methods for solving systems of...

Use the indicated row operation to change each matrix. Then explain why that row operation should be applied to the matrix. 1. Replace R by R + (-4) R 14 7 4 1 2 3 10 6 lo 45 11 2. Replace R by R +...

Perform the indicated elementary row operation. 1) {X ' 53' ' 4 R2+(2)R1 2x+2y=o ) 2) Find the result of performing the elementary row operation R3 + (5) R2 on the system A) B) C) 1 0 3 9 1 0 3 9 1 0...

# MPC - Master-Slave Method # MFC: u2-u6 = 1/5 - slave: u6 import numpy as np def MasterStiffnessOfSixElementBar(kbar): K = np.zeros((7, 7)) for (i, row) in enumerate(K): if i == 0: row[i:i+2] =...

Help 8. Use the Gauss-Jordan method to solve this system of equations. You may use your calculator. If there is no solution, explain why; if there are infinitely-many solutions, express them using a...

Math 151 Sections 5.1, 5.2, 5.5 You must show all work NEATLY in the space provided. Indicate your final answer. Upload your work as a PDF file. Solve the system by elimination. 1) -7x - 6y = -13 -3x...

The table shows the number of licensed drivers between the ages of 16 and 22, in 1997: Age 17 18 19 20 21 22 (years) 23 Number of Drivers 2.11 2.47 2.63 2.73 2.78 2.67 2.46 (millions) Examine the...

If a company fully allocates all of its overhead costs to jobs, does this guarantee that a profit will be earned for the period?

57. LO.10, 12 Jasmine Gregory is a 20% member in Sparrow Properties, LLC, which is a lessor of residential rental property. Her share of the LLCs losses for the current year is $100,000. Immediately...

1.11. If the public expects a corporation to lose $5 per share this quarter and it actually loses $4, which is still the largest loss in the history of the company, what does the efficient market...

Solve each equation. Use the change of base formula to approximate exact answers to the nearest hundredth when appropriate. 3-5 = 125

Solve each equation. Use the change of base formula to approximate exact answers to the nearest hundredth when appropriate. 2 + 1 = 15

Use the change of base formula to approximate the logarithm to the nearest thousandth. 5log, 25

Consider this project with an internal rate of return of 2 5 . 0 % . The following are the cash flows of the project. \ table [ [ Year , Cash Flow ] , [ 0 , + $ 1 8 0

Identify relevant cash flows used in evaluating a capital budget project. Why capital budgeting techniques use cash flows instead of profits. Use the example of a restaurant chain opening an...

(17) Electronics and more offers Credit term of 2/7 Net/20 what is effective Annual rate on $ 4500 purchase you Not Jet Adiscount. BAR A) 41.837. B). 38.597. C). 44.99%. D). 37.801