"one third" is not an event and so cannot have complement nor a probability.
Suppose the angle is x degrees. Its complement is 90-x So x is 2/3 of (90-x) 3x = 2*(90-x) = 180 - 2x 5x = 180 so that x = 36 degrees
15
2
18o
"one third" is not an event and so cannot have complement nor a probability.
45
45
You can calculate the angle Let X =angle in degrees The complement is 90 -x 1/3(90-X) = X 30 - X/3 = X 30 = 4X/3 X = 22.5 degrees
Suppose the angle is x degrees. Its complement is 90-x So x is 2/3 of (90-x) 3x = 2*(90-x) = 180 - 2x 5x = 180 so that x = 36 degrees
one-third of x is x/3
180-x= 2(90+x) - 60 180-x=180+2x - 60 -x=-60 x=60 Are you in my honors geometry class? The algebra is wrong. the third line should read -3x=-60 x=20 therefore the complement is 70o This agrees with the answer in the back of the book.
11.25
15
2
18o
Suppose the angle is x. Then its complement is 90-x. So x = (90-x) + 28 = 118 - x So 2x = 118 and x = 59 (with complement 31).