Answer:
Equivalent systems of equations review
Step-by-step explanation:
We're given two systems of equations and asked if they're equivalent.
x + 4y = 8 (1)
4x + y = 2 (2)
Interestingly, if we sum the equations in System A, we get:


Replacing the first equation in System A with this new equation, we get a system that's equivalent to System A:


This is System B, which means that System A is equivalent to System B.
Answer:
3(2r+1)
Step-by-step explanation:
5r+1 is 6
Then you factor out 3 and get 3(2r+1)
So this is so easy
the answer is33
pay attention what i’m saying:
if you have a circle like this and you have arc if the arc doesnt pass the center of the circle and fit to the environment of circle the measure of angle is half of the measure of arc
Step-by-step explanation:
check it.. i have solved it for you.