Mathematics, 21.10.2020 01:01, bri9263
In one day, Joe consumes 530 calories by drinking 1 serving of juice, 2 s
370 calories by drinking 2 servings of juice and 1 serving of milk. Marian
of milk and 1 soda. Using matrices to solve, how many calories are in
Answers: 3
![\left[\begin{array}{ccc}1&2&1\\2&1&0\\0&3&1\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}530\\370\\510\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&2&1\\2&1&0\\0&3&1\end{array}\right] ^{-1}\left[\begin{array}{c}530\\370\\510\end{array}\right] \\\\\\](/tpl/images/0826/0946/52c4e.png)
![\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}0.33&0.33&-0.33\\-0.67&0.33&0.67\\2&-1&-1\end{array}\right]\left[\begin{array}{c}530\\370\\510\end{array}\right]\\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}130\\110\\180\end{array}\right]](/tpl/images/0826/0946/58773.png)
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In one day, Joe consumes 530 calories by drinking 1 serving of juice, 2 s
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