What 5/8x + 1/2 (1/4x + 10)?
2 answers:
You might be interested in
Answer:
the answer is 111
Step-by-step explanation:
Answer:
A, C, D
Step-by-step explanation:
Solve all equations:
A.
This is incorrect equality, so the equation has no solutions.
B.
This is correct equality, so the equation has infinitely many solutions.
C.
This is incorrect equality, so the equation has no solutions.
D.
This is incorrect equality, so the equation has no solutions.
Answer:
x=70, y=55
Step-by-step explanation:
Since the angle "y" and 2x-15 form a straight line, that means the sum of the angles, must be 180 degrees.
So using this we can derive the equation:
The next thing you need to know is that the sum of interior angles of a triangle is 180 degrees, so if we add all the angles, we should get 180.
So using these we can derive the equation:
So, in this case we simply have a systems of equations. We can solve this by solving for x in the second equation (sum of interior angles), and plug that into the first equation.
Original Equation:
Subtract 2y from both sides
Now let's plug this into the first equation
Plug in 180-2y as x
Distribute the 2
Combine like terms
Subtract 345 from both sides
Divide both sides by -3
So we can plug this into either equation to solve for x
Substitute in 55 as y
Subtract 110 from both sides