Option B:
4.6x + 14.4 = 180
Solution:
The circle graph represents the college tuition and fees.
In the given circle graph,
2x, 1.6x, 14.4° and x represent the degree of the circle graph.
To find the equation could be used to find the value of x:
We know that,
Sum of the angles in the straight line = 180°
⇒ 2x° + 1.6x° + 14.4° + x° = 180°
Arrange like terms together.
⇒ 2x° + 1.6x° + x° + 14.4° = 180°
⇒ 2x° + 1.6x° + x° + 14.4° = 180°
⇒ 4.6x° + 14.4° = 180°
Without indicating a degree, the expression is
⇒ 4.6x + 14.4 = 180
Option B is the correct answer.
Hence the equation which used to find the value of x is
4.6x + 14.4 = 180.