So here, I would first multiply 0.17777.... (Assume that that's x) by 10, then you get
10x = 1.777777...
And then subtract x from 10x and then you get 1.6.
So that means that
10x - x = 9x
and 1.7777... - 0.17777... = 1.6
So now to solve for x, divide both sides by 9
To get 1.6/9 = x
Or 16/90 = x
Or 8/45 = x
(That explanation made no sense)
All sides are equal on a triangle
(10y - 4) + (7y + 8) + (7y - 5) + (4y - 5) =
= 10y - 4 + 7y + 8 + 7y - 5 + 4y - 5 =
= 10y + 7y + 7y + 4y - 4 + 8 - 5 - 5 = <u>2</u><u>8</u><u>y</u><u> </u><u>-</u><u> </u><u>6</u>