Mathematics, 19.07.2020 01:01 eden1017
3. Given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solution. Show why this is true by solving the system of equations given. Justify the reason for each step. HINT: Use addition property of equality and multiplication property of equality in your answers. (8 points: 1 point for each question) 5x + 2y = 7 3x β y = 2 To solve the system using elimination, first multiply the bottom equation by 2. Write the new system of equations. (1 point) Why is this multiplication allowed? (1 point) What variable will be eliminated when the equations are combined after the multiplication? (1 point) Next, add the equations together. Your answer should be a single equation with one variable. (1 point) Why can you add the equations? (1 point) Solve the equation for x. (1 point) Substitute x back into one of the equations to solve for y. (1 point) What is the solution to the system of equations? (1 point)
Answers: 3
Mathematics, 21.06.2019 13:40
Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working
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Mathematics, 21.06.2019 17:20
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What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100
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Mathematics, 21.06.2019 19:10
The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) β x + 2y = 15 (4x β 8y = 12) β x β 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)
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3. Given a system of two equations in two variables, replacing one equation by the sum of that equat...
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