3 years ago

1 cat + 20 dogs + 60 men + 5 shark=

Mathematics

2 answers:

denis23 [38]3 years ago

7 0

Answer:

86 baby sharks

Step-by-step explanation:

Goryan [66]3 years ago

6 0

Answer:

Step-by-step explanation:

1 cat + 20 dogs + 60 men + 5 shark= 86

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3 years ago

Use Cramer's Rule to solve the following system: –2x – 6y = –26 5x + 2y = 13

andriy [413]

$\bf \begin{cases}
-2x-6y&=-26\\
\quad 5x+2y&=13
\end{cases}\stackrel{\textit{determinant of the coefficients}}{D=
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\\\\\\
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-------------------------------\\\\$

$\bf x=\cfrac{D_x}{D}\implies x=\cfrac{
\begin{bmatrix}
\boxed{-26}&-6\\\\ \boxed{13}&2
\end{bmatrix}}{D}\implies x=\cfrac{(-52)-(-78)}{26}
\\\\\\
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-------------------------------\\\\
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\begin{bmatrix}
-2&\boxed{-26}\\\\ 5&\boxed{13}
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\\\\\\
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4 0

4 years ago

1 cat + 20 dogs + 60 men + 5 shark=​

1 cat + 20 dogs + 60 men + 5 shark=