It means your solving for x
Answer:
X=67.5
Step-by-step explanation:
3X + X=4X
4X+90=360
4X=360-90
4X=270
X=67.5
Answer:
0.12
Step-by-step explanation:
15 divided by 125 is equal to 0.12
The perimeter is twice the sum of the length and the width:

The area is the product of the dimensions:

So, the system is
