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3 years ago

Create an equivalent system of equations using the sum of the system and the first equation.

Mathematics

2 answers:

Temka [501]3 years ago

8 0

Answer:

x+4y=8

5x+5y=10

Step-by-step explanation:

SVETLANKA909090 [29]3 years ago

7 0

Answer:

$x+4y=8\\5x+5y=10$

Step-by-step explanation:

Given:

$x + 4y = 8\\4x + y = 2$

Adding the above two equations, we get

$x + 4y+4x + y= 8+2\\x+4x+4y+y=10\\5x+5y=10$

Therefore, an equivalent system of equations using the sum of the system and the first equation is :

$x+4y=8\\5x+5y=10$

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3 years ago

The table shows a linear function.

sergejj [24]

Answer:

$\large\boxed{y=\dfrac{5}{3}x+9}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

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The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

From the table we have an y-intercept (0, 9) → b = 9.

Take other point from the table (-6, -1).

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Finally:

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