Given the following three equations: Equation 1: 2 x - 4 y + z = 13.1 Equation 2: x + 2 y + 3 z = 7.2 Equation 3: -3 x - 2 y + 2 z = 7.1 Use elimination to find the value of z. For this question you will be asked to turn in a numerical answer. Your answer should be rounded off to the nearest tenth. Notice, that says "tenth" and not a number of sig figs. If you get an answer of 5.38, enter 5.4 for your answer here. If you get an answer of -12.62, enter -12.6 here. Do your work with whatever tools you wish, but in the next problem you will be REQUIRED to submit an image of your work that is neat enough for anyone to follow. In your scratch paper, I should see you starting out with three equations and three unknowns. Later on the page you should clearly label the step where you have two equations and two unknowns, and I should be able to see how you used elimination to get from three equations to two. Later on the page, you should clearly label a step with one equation and one unknown (and again, I should be able to see the steps of the method of elimination that you used). If you get the numerical answer wrong, Canvas will deduct a point, but I will give you the point back if your solution is neat and clearly uses elimination to solve the problem properly. It is always possible to make small mistakes, so be careful, and good luck!
Given the following three equations: Equation 1: 2 x - 4 y + z = 13.1 Equation 2: x + 2 y + 3 z = 7.2 Equation 3: -3 x - 2 y + 2 z = 7.1 Use elimination to find the value of z. For this question you will be asked to turn in a numerical answer. Your answer should be rounded off to the nearest tenth. Notice, that says "tenth" and not a number of sig figs. If you get an answer of 5.38, enter 5.4 for your answer here. If you get an answer of -12.62, enter -12.6 here. Do your work with whatever tools you wish, but in the next problem you will be REQUIRED to submit an image of your work that is neat enough for anyone to follow. In your scratch paper, I should see you starting out with three equations and three unknowns. Later on the page you should clearly label the step where you have two equations and two unknowns, and I should be able to see how you used elimination to get from three equations to two. Later on the page, you should clearly label a step with one equation and one unknown (and again, I should be able to see the steps of the method of elimination that you used). If you get the numerical answer wrong, Canvas will deduct a point, but I will give you the point back if your solution is neat and clearly uses elimination to solve the problem properly. It is always possible to make small mistakes, so be careful, and good luck!
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question
Transcribed Image Text:Given the following three equations:
Equation 1:
2 x - 4 y + z = 13.1
Equation 2:
x + 2 y + 3 z = 7.2
Equation 3:
-3 x - 2 y + 2 z = 7.1
Use elimination to find the value of z.
For this question you will be asked to turn in a numerical answer. Your answer should be rounded off to the nearest tenth. Notice,
that says "tenth" and not a number of sig figs. If you get an answer of 5.38, enter 5.4 for your answer here. If you get an answer of
-12.62, enter -12.6 here.
Do your work with whatever tools you wish, but in the next problem you will be REQUIRED to submit an image of your work that is
neat enough for anyone to follow.
In your scratch paper, I should see you starting out with three equations and three unknowns. Later on the page you should clearly
label the step where you have two equations and two unknowns, and I should be able to see how you used elimination to get from
three equations to two. Later on the page, you should clearly label a step with one equation and one unknown (and again, I should
be able to see the steps of the method of elimination that you used).
If you get the numerical answer wrong, Canvas will deduct a point, but I will give you the point back if your solution is neat and
clearly uses elimination to solve the problem properly.
It is always possible to make small mistakes, so be careful, and good luck!
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