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Mathematics, 16.11.2019 03:31 marcosrodriguez5304
Ryan, jessica, and mark each solved this system of equations. all of their answers are different. find and explain the mistakes. what is the correct answer?
y = 3x + 2
6x – 2y = 10
ryan’s
i solved by adding the equations. the solution is .
y = 3x + 2 → 3x + y = 2
6x – 2y = 10 → 3x – y = 5
6x = 7
x =
6x – 2y = 10 → 6 – 2y = 10
7 – 2y = 10
–2y = –3
y = -
jesse’s
i used matrices. the solution is .
mark’s
i graphed the equations. the lines are parallel and do not intersect, so there is no solution.
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Ryan, jessica, and mark each solved this system of equations. all of their answers are different. fi...
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