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Helga [31]
3 years ago
9

Kym used the integer tiles to find the sum of (–3) + 6. The line showed that the answer is negative 3. Which of the following do

es Kym need to do to get the correct answer?
A.add three more negative tiles
B.remove the zero pairs
C.add three more positive tiles
D.remove three positive tiles
Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0

Answer:

remove the zero pairs

Step-by-step explanation:

just did the answer :)

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PLEASE HELP!!!!! What is the value of x in the matrix equation below?
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The given matrix equation is,

1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right].

Multiplying the matrices with the scalars, the given equation becomes,

\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Adding the matrices,

\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right]  =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Matrix equality gives,

1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2

Solving the equations together,

y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10

We can see that the equations are not consistent.

There is no solution.

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Steps:

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Answer:

A

Step-by-step explanation:

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