Step-by-step explanation:
For no. 11
13x + 15 = 19x - 9 ( being opposite sides of parallelogram)
19x - 13x = 15 + 9
6x = 24
x = 4
Also,
4y + 7 ° + 10y - 37° = 180° { being co-interior angles }
14y - 30° = 180°
14y = 210°
y = 210° / 14
y = 15°
For no. 12
5x + 38° = 8x - 19° { being opposite angles of parallelogram }
8x - 5x = 38° + 19°
3x = 57°
x = 19°
Hope it will help :)
Answer:
11
Step-by-step explanation:
![\sqrt{121} = \sqrt{11 \times 11} = 11 \\](https://tex.z-dn.net/?f=%20%5Csqrt%7B121%7D%20%20%3D%20%20%5Csqrt%7B11%20%5Ctimes%2011%7D%20%20%3D%2011%20%5C%5C%20)
Hello there.
<span>There were 196 students that participated in a clean-up event at a nearby lake. this is one fourth of the entire student population. write and solve an equation to find the number of students at this school.
Answer: x is the number of students in the school.
</span>
![\frac{x}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B4%7D%20)
= 196.
<span>196 x 4 = 784.
Therefore the number of students in this school is
784.
Hope This Helps You!Good Luck Studying ^-^</span>
Answer:
20 * 19.52 = 390.40
Thank you and please rate me as brainliest as it will help me to level up
Answer:5.056179775
Step-by-step explanation:
9 divided 1.78