Answer:
5 = 1
or
5 = 25
Step-by-step explanation:
I've seen two answers to this.
1. Since we are told 1 = 5, then 5 = 1.
One answer is 1 = 5
2. Since each number on the right is 5 times the number on the left, then 25 corresponds to 5, and 5 = 25.
Answer:
9
Step-by-step explanation:
Answer:
x = 10
y = 15
Step-by-step explanation:
Angles 8x - 10 and 7x are congruent because they are alternate interior angles of parallel lines cut by a transversal.
8x - 10 = 7x
x = 10
7x = 7(10) = 70
6y + 20 and 7x are supplementary since they are a linear pair.
6y + 20 + 7x = 180
6y + 20 + 70 = 180
6y = 90
y = 15
Answer:
4x^2+16x+5
Step-by-step explanation:
(6x^2+7x)+(5-2x^2+9x)
6x^2-2x^2+7x+9x+5
4x^2+16x+5
Answer:
x = (z + 3y) / 20
Step-by-step explanation:
20x - 3y = z
+3y +3y
-----------------------
20x = z + 3y
/20 /20
-----------------------
x = (z + 3y) / 20