Mathematics, 14.12.2019 18:31 zalbesifki12
Marjorie got a total 239 points on three tests. the combined scores on the scores on the second two tests were 59 more than the score on the third test. the score on the second test was 25 points more than the score on the third test. write a matrix a matrix equation for this situation.
Answers: 1
![\left[\begin{array}{ccc}1&1&1\\1&1&-1\\0&1&-1\end{array}\right]](/tpl/images/0418/8153/b3787.png)
![\left[\begin{array}{c}x&y&z\end{array}\right]=](/tpl/images/0418/8153/f1db6.png)
![\left[\begin{array}{c}239&59&25\end{array}\right]](/tpl/images/0418/8153/dcc74.png)
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Marjorie got a total 239 points on three tests. the combined scores on the scores on the second two...
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