Mathematics, 17.12.2020 21:20 6FOOT
Courtney believes that, given a system of two linear equations in two variables, replacing one equati
produces a system with the same solution. Test Courtney's conjecture by completing the parts below
Part A:
Verify that the system of equations 3x β 7y = 26 and 5x + 2y = 16 has a solution of (4, -2) by substi
equations and simplifying.
Part B:
Multiply both sides of the equation 3x - 7y = 26 by 2, and then add the result to the equation 5x + 2y
that you just found to create a new system of equations. Show your work.
Part C:
Show whether or not (4, -2) is a solution to the new system of equations by substituting the x- and y-
simplifying. Is Courtney's conjecture correct based on this example?
Answers: 3
Mathematics, 21.06.2019 18:30
The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.
Answers: 1
Mathematics, 22.06.2019 00:00
Jessie and bob are financing $425,500 to purchase a house. they obtained a 30/8 balloon mortgage at 6.55%. what will their balloon payment be?
Answers: 3
Courtney believes that, given a system of two linear equations in two variables, replacing one equat...
History, 14.11.2020 14:00
Mathematics, 14.11.2020 14:00
History, 14.11.2020 14:00
English, 14.11.2020 14:00
English, 14.11.2020 14:00
SAT, 14.11.2020 14:00
English, 14.11.2020 14:00
Mathematics, 14.11.2020 14:00
English, 14.11.2020 14:00
Computers and Technology, 14.11.2020 14:00
Mathematics, 14.11.2020 14:00
Mathematics, 14.11.2020 14:00
Chemistry, 14.11.2020 14:00
Mathematics, 14.11.2020 14:00