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Vladimir [108]
3 years ago
6

What coordinate pair satisfies both 5x - 3y=22 and -4x + y=-19​

Mathematics
1 answer:
Arlecino [84]3 years ago
6 0

Answer:

hello : coordinate pair is:  (5 ; 1)

Step-by-step explanation:

you have this system :

5x - 3y=22 ......(1)

-4x + y= -19​.....(2)

by (2) : y = 4x -19

put y in (1) : 5x - 3 (4x -19) =22

5x -12x +57 = 22

- 7x = -35

x = 5

but : y = 4x -19  so : y = 4(5) -19   = 1

coordinate pair is:  (5 ; 1)

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Answer:

The linear regression equation that represents  the set of data is:

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Step-by-step explanation:

The general form of a linear regression is:

y=a+bx

Here,

<em>y</em> = dependent variable

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The linear regression equation that represents  the set of data is:

y=1083.48+23.73x

Compute the predicted value of the number of new cases for 2013 (i.e. <em>x</em> = 12) as follows:

y=1083.48+23.73x

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Thus, the predicted number of new cases for 2013 is 1368.

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