Answer:
Unit Scale
Step-by-step explanation:
A unit scale is a ratio that compares the dimensions of an actual object to the dimensions of a scale drawing or model that represents the actual object. Neither value in a unit scale has to equal 1.
to find the slope, use the slope formula:
![m\text{ = }\frac{y2\text{ - y1}}{x2\text{ -x1}}](https://tex.z-dn.net/?f=m%5Ctext%7B%20%3D%20%7D%5Cfrac%7By2%5Ctext%7B%20-%20y1%7D%7D%7Bx2%5Ctext%7B%20-x1%7D%7D)
Take any 2 points from the table,
(x1, y1) ==> (8, -5)
(x2, y2) ==> (16 -10)
Therefore, we have:
![m\text{ = }\frac{-10-(-5)}{16-8}=\frac{-10+5}{8}=\text{ }\frac{-5}{8}](https://tex.z-dn.net/?f=m%5Ctext%7B%20%3D%20%7D%5Cfrac%7B-10-%28-5%29%7D%7B16-8%7D%3D%5Cfrac%7B-10%2B5%7D%7B8%7D%3D%5Ctext%7B%20%7D%5Cfrac%7B-5%7D%7B8%7D)
Therefore the slope of the table is:
<span>Simplifying
5x + -7 = -10x + 8
Reorder the terms:
-7 + 5x = -10x + 8
Reorder the terms:
-7 + 5x = 8 + -10x
Solving
-7 + 5x = 8 + -10x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '10x' to each side of the equation.
-7 + 5x + 10x = 8 + -10x + 10x
Combine like terms: 5x + 10x = 15x
-7 + 15x = 8 + -10x + 10x
Combine like terms: -10x + 10x = 0
-7 + 15x = 8 + 0
-7 + 15x = 8
Add '7' to each side of the equation.
-7 + 7 + 15x = 8 + 7
Combine like terms: -7 + 7 = 0
0 + 15x = 8 + 7
15x = 8 + 7
Combine like terms: 8 + 7 = 15
15x = 15
Divide each side by '15'.
x = 1
Simplifying
x = 1
</span>
Answer:
(18 x 4) * 5 = 360
(18 x 4) * 5 = 1320
15 x (4 x 20) = 1200
Step-by-step explanation:
Expand and simplify
(x-3) (x-3) +2(x-3) -8=0
(x-3+2)(x-3)-8=0
(x-1)(x-3)-8=0
x^2 -4x +3-8=0
x^2 - 4x -5=0
x^2 -5x +x-5=0
x(x-5)+x-5=0
(x+1)(x-5)=0
x= - 1, 5