6/14 is the next fraction in the sequence
Find the total ° of the shape.
(5-2) x 180°= 540°
x+21°+x = 540°-105°-154°-88°
2x+21° = 193°
2x = 193°-21°
2x = 172°
x = 172° ÷ 2
x = 86°
I'd start by recognizing that the smaller triangle, at the top, is similar to the larger (whole) triangle.
Then:
a b
------- = ---------
15+a 20+b
Then 20a + ab = 15b + ab. Subtract ab from both sides. We then get 20a = 15b. Note also that
40 b
----- = ----------
60 b+20
so that 40b + 800 = 60b, or 800 = 20b, or b = 40.
If b = 40, then we can find a from the relationship 20a = 15b found earlier. With b=40, 20a = 15(40) = 600, so a = 30
a = 30
b= 40
x + x + x + 2
There are 3 x's so that's
3x + 2
Yeah, you're right is D
2(x + 1) + x = 2x + 2 + x = 3x + 2
The other answer
Answer:
(x,y)--->(x-5,y-3) so that is your abswer
