Answer:
each side of the square is 25cm
Step-by-step explanation:
this is because of two things:
1. a square has equal sides
2. the perimeter is all the sides added together.
so if you call the length of one side x, you can make this equation:
x + x + x + x = 100
<em>combine like terms</em>
4x = 100
<em>divide both sides by 4</em>
x = 100/4
x = 25
Answer:
Don't know what the equation is but this is the rules is:
Subtract 4x from each side.
2. Simplify.
3. Subtract 2 from each side.
4. Simplify.
5. Divide each side by 5.
6. Simplify
Step-by-step explanation:
This is an example
Answer:
A
Step-by-step explanation:
Vertical angles are angles that are formed by 2 lines and are directly accross from each other. They do not share a ray, however they are always the same number of degrees.
so then the answer would be A, ∠ERT and ∠MRC since they are directly across from each other.
Answer:
he placed a * sign instead of an add sign in the second part of the equation
Step-by-step explanation:
6(2b+5)=6*2b + 6*5 = 12b + 30
Answer:
A
Step-by-step explanation:
where z is an integer
possible values of n
n= {1980, 990, 660, 495, 396, 330, 198, 180, 165, 132, 99, 90, 60, 45, 36, 30, 20, 18, 15, 5, 3}
cardinality of n=21
