1. consider the system of equations.
x-5y=2, 3x-10y=11
(a) jamar rewrote the firs...
Mathematics, 20.01.2020 04:31, lsrgb
1. consider the system of equations.
x-5y=2, 3x-10y=11
(a) jamar rewrote the first equation as –2x + 10y = –4. what justification did he have for doing this?
(b) jamar combined the equation in part (a) with the second equation in the system to get x = 7. explain jamar’s reasoning.
(c) what is the solution of the system?
(d) how do you know, without graphing, that the graph of 4x – 15y = 13 passes through the point whose coordinates are the solution of the system?
Answers: 1
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