Answer:
Substitution Property
Step-by-step explanation:
So we know that:
And we also know that:
And by using a specific property, we get that:
Essentially, we <em>substituted</em> B for A.
So, this is an example of the substitution property, where if two sides/angles are congruent, we can substitute them for each other.
First way is distribute to get
-10=2y-3
add 3 to both sides
-7=2y
divide by 2 both sides
-7/2=y
y=-7/2=-3.5
2nd way
multiply both sides by 4/1
-40=8y-12
add 12 both sides
-28=8y
divide both sides by 8
-28/8=y
y=-28/8
y=-7/2=-3.5
those are 2 ways to solve
There are 4 equal slices because 25 to 25 to 25 to 25 =100
Answer: The answer is C.
Step-by-step explanation: This is because when you solve you get y=1/10x+6.5 this graph runs through the point (5,7) and is perpendicular to y=-10x+1. In order for two equations to be perpendicular their slopes will be the opposite.