3 years ago

I need help with this problem!! I need it answered by 11:59 tonight.

Mathematics

1 answer:

tino4ka555 [31]3 years ago

7 0

OOP sorry did you get it

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Which one is it A. B. C. or D.

nadya68 [22]

7x + 2y = 2
2x - y = 10

2y = - 7x + 2
- y = - 2x + 10

2y = -7x + 2
y = 2x - 10

$y=\frac{-7x+2}{2}$
y= 2x - 10

y = -3.5x + 1
y = 2x - 10

Now, let's find "x" first by doing a substituion !

2x - 10 = - 3.5x + 1
y = 2x - 10

2x + 3.5x = 1 + 10
y = 2x - 10

5.5x = 11
y= 2x - 10

$x = \frac{11}{5.5}=2$
y= 2*2 - 10 = 4 - 10 = -6

In short, the answer would be : y = -6 (Option B).

Hope this helps !

Photon

8 0

3 years ago

18, 24, 26, 30<br> Mean:<br> Median:<br> Range:

Paha777 [63]

Answer:

mean: 24.5

median:25

range:12

Step-by-step explanation:

i asked alexa...

7 0

3 years ago