Question

if (3x-15°)and (x+5°)are complementary angles,find the angles.

Answer 1

Hlo friend.. Cutiepie Here..

Here is ur answer :

(3x-15°)and (x+5°)are complementary angles.

Let the Ist angle be 3x - 15

Let the IInd angle be x + 5


3x - 15 + x + 5 = 90

4x - 10 = 90

4x = 90 + 10

4x = 100

x = 100 / 4

x = 25

Ist angle = 3(25) - 15

= 75 - 15

= 60

IInd angle = x + 5

= 25 + 5

= 30
__________________________

HOPE IT HELPS YOU..

REGARDS
@sunita

Answer 2

Heya !!!

This is your answer.

Given :-

Two complementary angles ...
are (3x - 15)° and (x + 5)°.

We know that sum of complementary angles is 90°.

So....
3x - 15 + x + 5 = 90
4x -10 = 90
4x = 100
x = 25.

So ....
first angle ; 3x - 15 = 3×25 - 15 = 60°.
Second angle ; x + 5 = 25 + 5 = 30°.

Hence the two angles are 60° and 30°.

HOPE IT HELPS