Answer:
a = 12
Step-by-step explanation:

Convert element into fraction : 3= 3/1

Cross multiply

if we name that part x, then we can say
1/x = 1/a + 1/b
You divide 2 by 9 which is .2222--- or .2 if you round it to the nearest tenths.
Whenever you want to change a fraction to a decimal, you divide the numerator by the denominator.
<u>Answer:</u>
The angles measures x and 4x are complementary angles. The value of x is 36 degrees
<u>Solution:</u>
Given, two angles are x and 4x
We have to find the value of above given x
We are also given that, given two angles are complementary angles for each other
So, we know that, <em>sum of any two complementary angles will always be equal to 180 degrees </em>
Then, in the problem given,

Hence the angles measures x and 4x are complementary angles. The value of x is 36 degrees