3 years ago

Solve this system of linear equations. separate the x- and y- values with a coma. -2x=8-6y

1 answer:

5 0

<span>The y variable has the same coefficient so use elimination (subtract equations).

-2x = 8 - 6y
-(-15x = 21 - 6y)
------------------------
13x = -13 + 0

x = -1
Use this to find y in either equation. </span>
<span>-2(-1) = 8 - 6y
2 = 8 - 6y
2 - 8 = -6y
-6 = -6y
y = 1

(x,y) = (-1, 1)
</span>

You might be interested in

Todd orders pictures from a photographer. Each picture costs $7.50. A one-time shipping fee of $3.25 is added to the cost of the

Vsevolod [243]

Answer: The equation is y = 3.25 + 7.5x and Todd bought 11 pictures

Step-by-step explanation:

4 0

3 years ago

The length of a rectangular prism is 4√3 units. The height is 3√6 units. If the volume is irrational, which could be the measure

Jet001 [13]

Volume = length * height * width
= 4 qrt3 + 3 sqrt6 * w
= 12 sqrt18 w

let w = 2 sqrt50 then volume = 2*12 * sqrt 18*50 = 24*30 so this is rational

let w = 4 sqt 12 the v = 48 sqrt12 * sqrt 18 = 48 sqrt30 which is irrational

C and D are rational
answer is B

8 0

3 years ago

25 Points!!!!!!!!!!!!!!!!!!

valkas [14]

No it is not 25 it 13 points why would you lie to me

3 0

2 years ago

Joan waters her plants each day with gallons of water. With a new irrigation system in place, she uses gallons of water each day

vampirchik [111]

Answer:

$172\frac{1}{2}$ gallons