Solve the system
2x + y = -3
-2y = 6 + 4x
write each equation in slope-intercept form.
y =
x
+
y =
x
+

Step-by-step explanation:

I am gonna put these equations in slope intercept form firstu will see why in a second...

slope intercept form is y = mx + b

2x + y = -3subtract 2x from both sides

y = -2x - 3 <=== slope intercept form

-2y = 6 + 4x divide both sides by -2

y = (-6/2) + (-4/2)x

y = -3 - 2xrearrange

y = -2x - 3 <=== slope intercept form

now notice how both equations, in slope intercept form, are EXACTLY the samethats because they are the same linemeaning the solution to these equations is : INFINITE SOLUTIONS

well the 1 and -1 are always after the 0 and the 0 is inthe middle. s thats what i would guess. but i dont know what a slope of 2 is sorry

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.