When are two angles called complements of one another ?

Two angles are said to be complements of one another if: they add up to be 90 degrees.

Step-by-step explanation:

When are two angles called complements of one another ?

Answer : Two angles are said to be complements of one another if: they add up to be 90 degrees.

Like popular combinations are = 60 degrees plus 30 degrees

45 degrees plus 45 degrees.

And many more.

27

Step-by-step explanation:

She has 1/3 clear marbles.

The question also states that 1/3 of the total is 9 marbles. That's enough to get the total number of marbles.

Let the total number of marbles = x

1/3 x = 9     Multiply both sides by 3 which will get rid of the fraction.

3*(1/3)x = 9 *3

x = 27

She has 27 marbles