Answer:
yes this is true.
Supplementary angles always add up to 180°.
N in (-oo:+oo)
-13 = n-8 // - n-8
8-n-13 = 0
-n-5 = 0 // + 5
-n = 5 // * -1
n = -5
n = -5
Answer:
–x + 6y = 42
Hope this answer is right!
8000-2600=5400
5400/12=450
monthly pavement =450
12x450+2600=8000
Answer:
13
Step-by-step explanation:
there is a rule that says that if you add any 2 sides, it should be more than the third. 9+21 is greater than 13. 21+13 is greater than 9. 13 is the only number which if you add 9 to it it will be greater than 21. 12 will equal 21, but it still wont work.
hope this helps :))
