2 years ago

Find the value of each variable

Mathematics

2 answers:

ale4655 [162]2 years ago

4 0

31-12-2005 7th 578u75tvxy

mylen [45]2 years ago

3 0

Answer:

20. 4n+5+8n-5=180(linear pair)

12n=180

n=15

21. 9x-6=8.5x+2(can be seen from image)

9x-8.5x=2+6

0.5x=8

x=8/0.5

x=80/5

x=16

22. 4z+3z+6=90°(Complementary)

7z+6=90°

7z=84°

z=12°

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