69 out of 100 because if you turn 3/10 into a fraction with a like denominator as 39/100 you get 30/100 and then you add 39 and 30 and get 69/100
We solve the equation: a = 50 + ( 90 - a );
Then, a = 140 - a;
2a = 140;
a = 140/2;
a = 70 (it is the measure of one angle);
90 - 70 = 20 (it is the measure of another angle);
Answer:
if green without blue is yellow then yellow and blue make green
Step-by-step explanation:
That is true, perpendicular lines must form right angles
