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Anastasy [175]
3 years ago
11

Hello everyone, please help me on this second question (:

Mathematics
1 answer:
Dvinal [7]3 years ago
3 0
100 times because it is two places meaning two zeros
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Can someone help me find the value of x and the value of y? I need them to show their work, too.
solniwko [45]

\bf \begin{cases} x-2y=0\\ 2x-5y=-4 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ x-2y=0\implies x=2y \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{substituting the found \underline{x} in the 2nd equation}}{2(2y)-5y=-4}\implies 4y-5y=-4\implies -y=-4 \\\\\\ y=\cfrac{-4}{-1}\implies \blacktriangleright y=4 \blacktriangleleft \\\\[-0.35em] ~\dotfill

\stackrel{\textit{substituting the found \underline{y} in the 1st equation}}{x-2(4)=0}\implies x-8=0\implies \blacktriangleright x=8 \blacktriangleleft \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (8,4)~\hfill

4 0
3 years ago
Choose the answer based on the most efficient method as presented in the lesson.
Mashcka [7]

Answer:

You would not subtract 3...

Step-by-step explanation:

It should be

2x- 8= 5x+3

subtract 5x from both sides,

then add 8 onto both sides, then you would get 0 on one side, and 11 on the other so you would have

-3=11 which equals

3.6

5 0
2 years ago
What are the points for -3x+6y+5=-7
Novay_Z [31]
-3x + 6y + 5 = -7
<u>                -5    -5</u>
      -3x + 6y = -12
-3x + 3x + 6y = -12 + 3x
<u>6y</u> = <u>-12 + 3x</u>
 6           6
  y = -2 + 1/2x
-3x + 6(-2 + 1/2x) = -12
-3x - 12 + 3x = -12
-3x + 3x - 12 = -12
0x - 12 = -12
<u>     +12   +12</u>
       <u>0x</u> = <u>0</u>
        0     0
         x = 0
-3(0) + 6y = -12
0 + 6y = -12
<u>+0           +0</u>
      <u>6y</u> = <u>-12</u>
       6       6
        y = -2
  (x, y) = (0, -2)
7 0
3 years ago
To have batting averages over 0.500,how many hits in 45 times at bat would Raul and Karen need
Morgarella [4.7K]
You would have to multiply 0.500(0.5) to 45 and you would get 22.5
6 0
3 years ago
Read 2 more answers
What is the median to 132, 183, 191, 237, 251, 277, 279, 334, 448, 599?<br>​
V125BC [204]

Answer:

264

Step-by-step explanation:

(251 + 277) / 2 = 264

3 0
3 years ago
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