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Ber [7]
4 years ago
5

Solve the system of equations and choose the correct ordered pair. 

Mathematics
2 answers:
Zinaida [17]4 years ago
8 0
<span>A) 2y = 8x - 14
B) 4y = 8x + 4
Multiplying Equation "A" by -1
</span>
<span>A) -2y = -8x +14 Then adding it to B
B) 4y = 8x + 4
</span>2y = 18
y = 9
<span>A) 2y = 8x - 14</span>
A) 18 = 8x -14
A) 32 = 8x
x=4


Alborosie4 years ago
6 0
-1(4y=8x+4)=-4y=-8x-4
+2y=8x-14
=========
-2y=-18
y=9

Then plug in y
2(9)=8x-14
18+14=8x
32/8=x
x=4
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If it takes Tanya 4.6 hours to get to her cousin's house while driving an average of 40 mph, how far away does her cousin live?
viva [34]
Her cousin lives 184 miles away

Explanation: In this problem you need to solve for the distance, and you are given speed and time. With this information, we need to use the speed formula which is s=d/t where s=speed, d=distance, and t=time

Next all you have to do is plug in your values, which should look like this-

40=d/4.6

Now that you have your equation, you must solve for d to get your distance by isolating d to one side of the equation. You do this, by multiplying 4.6 on each side of the equation.

This is what the math should look like-

(4.6)40=d/4.6(4.6)
184=d
d= 184 miles

I hope this helped!
7 0
4 years ago
Please help On this question please!
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3 years ago
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ivanzaharov [21]

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Step-by-step explanation:

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__

<em>Additional comment</em>

A horizontal line has equation y = constant. A vertical line has equation x = constant.

7 0
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