What we can do is set up an algebraic equation.
our variable can me L for Length
3L+4L+5L=90
now all we have to do is solve
12L=90
---- ----
12 12
L=7.5
now multiple each number in the ratio by 7.5 to find out how long each side is
3 times 7.5 is 22.5
4 times 7.5 is 30
5 times 7.5 is 37.5
the side lengths are 22.5, 30, and 37.5
Answer:
A
Step-by-step explanation:
We assume the opposite and then get to a point where we get a false statement. That proves that the the opposite of the opposite (What we originally wanted to prove) is true.
The answer to 13/250 in a decimal is 0.052
Answer:
x = 
Step-by-step explanation:
Given
3x - 1 = 27 ( add 1 to both sides )
3x = 28 ( divide both sides by 3 )
x =
Answer: S > 22
Step-by-step explanation:
