Step-by-step explanation:
To find the perimeter of something, we add all of the measurements of the sides together.
A rectangle has 4 sides, this means we must double the algebraic hints given to us.
If we add them all up together it will look like this:
x-9+x-9+3x-4+3x-4=138
If we simplify it by collecting the like terms:
8x-26=138
We add 26 onto 138
8x=164
To find out what x equals, we divide by 8:
164÷8= 20.5
Answer:
x=20.5cm
x-9 is 11.5
3x-4 is 57.5
I know that you will not give 100 points but just wanted to help.
5x + 3 = 38
5x = 38-3
5x = 35
x= 7
Answer:
1000
Step-by-step explanation:
If a number is higher than 5 round up. If its 4 or lower round down
Answer:
The 4th answer choice
Step-by-step:
They both are squares, which is similar, BUT they aren't congruent.
Congruent- When two or more shapes are the same size and shape.
Hope this helped!
Your answer would be 29
Why?
Because that is a right angle. They always have to be 90° so 90-61=29