Translate to a system of equations and solve: Two angles are complementary. One angle is 42 degrees more than one half the other. Find the angles.
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Two angles are complementary,
So, ∠x + ∠y= 90°…eqn¹
∠x = ∠y(½) + 42
∠x = ∠y/2 + 42 …eqn²
Let's put ∠x's value from eqn² in eqn¹
∠x + ∠y= 90°
∠y/2 +42 + ∠y= 90°
∠y/2 + ∠y= 90° -42
3∠y/2 =48
3∠y = 48*2
3∠y = 96
∠y = 32°
Now, put ∠y = 32°in eqn¹
∠x + ∠y= 90°
∠x + 32°= 90°
∠x = 90° -32°
∠x =58°