Answer:
6.32
Step-by-step explanation:
To find the side length on a right angled triangle we follow The Pythagorean Theorem:

c being the hypothesis (longest side: the hypotenuse is always opposite the right angle)
so..


Answer:
umm hol up lemme think about it
Step-by-step explanation:
1 m ------------- 0,001 K
5 m -------------- x
x = 5 . 0,001
x = 0,005 kilometers
hope this helps!.
The equations would be:
x=18+3y
x+y=54
(substitute x in the second equation with 18+3y)
18+3y+y=54
(combine like terms and solve for y)
y=9
(plug y into the second equation to find x)
x+9=54
x=45