Answer:
x = 28
Step-by-step explanation:
Okay COB is vertical to AOB, so we know they equal the same. Right the equation this way.
3x + x + x + 12 = 152 (collect like terms)
5x + 12 = 152 (subtract 12 on each side)
5x = 140 (divide by 5 on each side)
x = 28
(PLUG IN)
3(28) + (28) + (28) + 12 = 152
84 + 28 + 28 + 12 = 152
152 = 152
Answer:
Javon is incorrect because he subtracted 5 from the left side of the equation and added 5 to the right side of the equation
Step-by-step explanation:
Javon and Ivy are both given the equation 5-2x-1/3=4, Javon thinks the first step is -2x-1/3=9. Ivy thinks the first step is -2x-1/3=-1. Who is incorrect and why?
Given equation:
5 - 2x -1/3 = 4
Javon solution:
first step
-2x - 1/3 = 9
This is solved by subtracting 5 from the left side of the equation and adding 5 to the right side of the equation
5 - 2x -1/3 = 4
5 - 2x -1/3 - 5 = 4 + 5
-2x - 1/3 = 9
Javon is incorrect
Ivy solution:
first step
-2x -1/3 = -1
This is done by subtracting 5 from both sides of the equation
5 - 2x -1/3 = 4
5 - 2x -1/3 -5 = 4 - 5
-2x - 1/3 = -1
Ivy is correct
Javon is incorrect because he subtracted 5 from the left side of the equation and added 5 to the right side of the equation
Answer:
The percentage increase:20%
Step-by-step explanation:
Here's why the answer is simple since the Initial Number=10 we know that 20 percent of 10 is 2. Since the number increased by 2, therefore it increased 20 percent.
If this helps please hit Thank Button!
6942042042042042042042042042042069
Answer:
m∠DCB = 82°
explanation:
exterior angle = sum of opposite angles
55° + 27°
82°