3 years ago

A certain number is increased by 5 the result is 8 more than half the number what is the number

Mathematics

1 answer:

sdas [7]3 years ago

8 0

11 would be my best guess, kinda confusing question. I hope I helped!

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For what value(s) of k is the linear system consistent? (Enter your answers as a comma-separated list.)

AleksAgata [21]

Answer:

Step-by-step explanation:

Given

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The given system is $AX=B$ can be represented by

$\begin{bmatrix}6 &-9 \\ 9 & k\end{bmatrix}\begin{bmatrix}x_1\\ x_2\end{bmatrix}=\begin{bmatrix}8\\ -1\end{bmatrix}$

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$|A|$

$|A|=6k-(-81)=6k+81$

$k\neq \frac{-27}{2}$

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