The solution of the following system of equations, 2 x + y − 4 z = − 1 8 x − 2 y + 3 z = 2 − 10 x − 5 y + 20 z = 5

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Answer 1

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Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

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2) Suppose you start with $60 and increase this amount by 15%. Since 15% of $60 is $9, that means you increase your $60 by $9, so you now have $69. Notice that we did this calculation in two steps: first we multiplied $60 by 0.15 to find 15% of $60, then we added this amount to our original $60. Explain why it makes sense that increasing $60 by 15% can also be accomplished in one step by multiplying $60 times 1.15. 3) Suppose you have $60 and want to decrease this amount by 15%. Since 15% of $60 is $9, that means you will decrease your $60 by $9, so you now have $51. Notice that we did this calculation in two steps: first we multiplied $60 by 0.15 to find 15% of $60, then we subtracted this amount from our original $60. Explain why it makes sense that decreasing $60 by 15% can also be accomplished in one step by multiplying $60 times 0.85. 4) In the Read and Study section, we noted that the population in Colony B is increasing each year by 25%. Which other colony in the Class Activity…

5) You are purchasing a game for $30. You have a 5% off coupon and sales tax is 5%. What will your final price be? Does it matter if you take off the coupon first or add in the tax first? 6) You have ten coupons that allow you to take 10% off the sales price of a jacket, and for some strange reason, the store is going to allow you to use all ten coupons! Does this mean you get the jacket for free? Let's really think about what would happen at the checkout. First, the teller would scan the price tag on the jacket, and the computer would show the price is $100. After the teller scans the first coupon, the computer will take 10% off of $100, and show the price is $90. (Right? Think about why this is.) Then after the teller scans the second coupon, the computer will take 10% off of $90. (a) Continue this reasoning to fill in the table below showing the price of the jacket (y) after you apply x coupons. (b) Make a graph showing the price of the jacket from x = 0 to x = 10 coupons applied.…

(a) (b) (c) (d) de unique? Answer the following questions related to the linear system x + y + z = 2 x-y+z=0 2x + y 2 3 rewrite the linear system into the matrix-vector form A = 5 Fuse elementary row operation to solve this linear system. Is the solution use elementary row operation to find the inverse of A and then solve the linear system. Verify the solution is the same as (b). give the null space of matrix A and find the dimension of null space. give the column space of matrix A and find the dimension of the column space of A (Hint: use Rank-Nullity Theorem).

Answer 2

Question

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Expert Solution & Answer

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See solution

Answer 3

Question

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Expert Solution & Answer

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Answer 4

Question

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Expert Solution & Answer

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Answer 5

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Answer 6

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Answer 7

Chapter 4.2, Problem 30E

To determine

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

Answer 8

Expert Solution & Answer

Answer 9

Expert Solution & Answer

Answer 10

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Answer 11

Ch. 4.1 - Verbal and Writing Skills, Exercises 1-4 Explain...Ch. 4.1 - Verbal and Writing Skills, Exercises 1-4 Explain...Ch. 4.1 - Verbal and Writing Skills, Exercises 1-4 3. How...Ch. 4.1 - Verbal and Writing Skills, Exercises 1-4 When you...Ch. 4.1 - Determine whether the given ordered pair is a...Ch. 4.1 - Prob. 6E Ch. 4.1 - Solve the system of equations by graphing. Check...Ch. 4.1 - Prob. 8E Ch. 4.1 - Solve the system of equations by graphing. Check...Ch. 4.1 - Solve the system of equations by graphing Check...

The solution of the following system of equations, 2 x + y − 4 z = − 1 8 x − 2 y + 3 z = 2 − 10 x − 5 y + 20 z = 5

Solution Summary: The author explains that the system of equations, c2x+y-4z=-1 8x-2y+3z = 2 -10x-5y +20

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To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

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Chapter 4 Solutions

The solution of the following system of equations, 2 x + y − 4 z = − 1 8 x − 2 y + 3 z = 2 − 10 x − 5 y + 20 z = 5

Solution Summary: The author explains that the system of equations, c2x+y-4z=-1 8x-2y+3z = 2 -10x-5y +20

Videos

To calculate: The solution of the following system of equations, 2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5

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Chapter 4 Solutions

To calculate: The solution of the following system of equations,

2x+y−4z=−18x−2y+3z=2−10x−5y+20z=5