ΔACB and ΔMNB are similar. Therefore the corresponding sides are in proportion:

Substitute:

Y2-y1/x2-x1 then plug in numbers so 6-2/10-1 which gives 4/9
4(x+1) is factorized completely unless you are talking about quartics
42%
You have essentially a fraction, 21/50, which gives you a decimal of 0.42, or 42%.
(Flipped a total of 50 times, of those, it landed red side up 21 times, so 21/50)
<h3><u>The value of x is equal to -4.</u></h3>
-5 + 5x = -(1 - 6x)
Distribute -1 to each term inside the parentheses.
-5 + 5x = -1 + 6x
Subtract 5x from both sides.
-5 = -1 + x
Add 1 to both sides.
-4 = x