A+s=70, s+l=80, l+a=80
from the first s=70-a which makes the second:
70-a+l=80
-a+l=10
a=l-10 which makes the third:
l+l-10=80
2l-10=80
2l=90
l=45
So Liam weighs 45 kg.
Answer:
Step-by-step explanation:
The expression 
consists of three terms:
-
These three terms have common factor 
Thus,
Consider the expression 
You can rewrite it as
The whole expression takes look
Do either 190-39=151 or 190-151=39
Answer:
A
Step-by-step explanation:
Answer:
Yes, I believe the answer is C because that is the only one that sounds reasonable.
If it were any of the other answers than it would either be intersecting or on the exact line and it is supposed to be perpendicular mean never touching.
