The sum of all the angles in a trapezoid/trapezium is 360°.
90° + 60° + 150° + 3x = 360°
300° + 3x = 360°
3x = 360° - 300°
3x = 60°
x = 60°/3
x = 20°
Hope this helps!
<span>3.1415926535897 are the first 14 digits</span>
102 rounds to 100 and 28 rounds to 30 so 100 * 30 = 3000 is the reasonable answer
First, simplify this system:
<span>2x = -10y + 6 and x + 5y = 3
by dividing the first equation by 2. Result: </span><span>x = -5y + 3
Subbing this into the 2nd equation, -5y + 3 + 5y = 3
This equation is always true, so this system has infinitely many sol'ns.</span>