Answer:
hope this helps you out :)
Answer:
41 year old
Step-by-step explanation:
Suppose x is the total age before the ninth person joins. x/8=44 then the new persons age is a then x+a/9=47 so you subsitute x=352 then (352+a)/9=47 then 352+a=393 so we find a=41
Answer:8sqrt 2 or sqrt 128
Step-by-step explanation:
We can use the Pythagorean Theorem. Since the ladder is leaning against the wall, it is the hypotenuse. It is also 4 feet away from the wall so 12^2-4^2=b^2 b^2=128 so b=8sqrt 2 or sqrt 128.
Answer:
-1050
Step-by-step explanation:
-650+(-400)=-1050
We use negatives to show it is below sea level
