Question

if 2x - 15 and 3x + 45 are complementary angles then find the value of x​

Answer 1

Answer:

2x-15+3x+45=90          Complementry

5x+30=90

5x=60

x=12

please mark as brainliest and follow

Answer 2

Step-by-step explanation:

First angle = (2x - 15)

Second angle = (3x + 45)

Sum of complementary angles = 90°

Sum of complementary angles = (2x - 15) + (3x + 45)

90 = (2x - 15) + (3x + 45)

90 = 2x - 15 + 3x + 45

90 = 2x + 3x - 15 + 45

90 = 5x +30

90 - 30 = 5x

5x = 90 - 30

5x = 60

x = 60/5

x = 12

Therfore, x =. 12

Hence, First angle = (2x - 15)

= 2 × 12 - 15

= 24 - 15

= 9°

Second angle = (3x + 45)

= 3 × 12 + 45

= 36 + 45

= 81°

Hope it helps you mate!!! ❤️❤️