9514 1404 393
Answer:
x = (23 1/3)°
Step-by-step explanation:
The sum of angles in a triangle is 180°.
40° +2x +4x = 180°
6x = 140° . . . . . . . . . . . subtract 40°
x = 140°/6 = (23 1/3)° . . . . divide by the coefficient of x
_____
This makes the angles be 40°, 46.67°, and 93.33° (rounded to hundredths).
