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Klio2033 [76]
3 years ago
13

I will mark you brainliest!!!! Which ordered pair is the best approximation of the solution?

Mathematics
1 answer:
Ulleksa [173]3 years ago
5 0

Answer:

D

Step-by-step explanation:

We can substitute y = 2x + 1 in the second equation

2x + 1 = -7x + 8

Add 7x to both sides

9x + 1 = 8

Subtact 1 from both sides

9x = 7

x = 7/9

Substituing x in the first equation

y = 14/9 + 1

x rounds to 0.8

y rounds to 2.5

 

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Step-by-step explanation:

2x + 2y = 3 ( x2 for everything in the equation)

x - 4y = -1

4x+ 4y = 6

x - 4y = -1

Add the 1st line to the 2nd line to get rid of the y:

5x = 5

x - 4y = -1  ( you can pick any line from this system to be the second equation in this step, you can put 2x + 2y = 3 or 4x+ 4y = 6, anything above this step, but to make it simple chose the one you think is the easiest)

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Andreyy89

Answer:

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Step-by-step explanation:

hope this is right!

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Answer:

See attached

Step-by-step explanation:

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We've shown a few points plotted. Perhaps it will give you the idea of what you need to do.

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