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Question
given
\overline{ol}\perp\overline{on}
m\angle lom = 3x - 15^{circ}
m\angle mon = 5x - 23^{circ}
find m\angle mon.
Step1: Definir ángulos complementarios
Como \( \overline{OL} \perp \overline{ON} \), \( \angle LOM+\angle MON = 90^{\circ} \). Entonces \( 3x - 15+5x - 23 = 90 \).
Step2: Resolver la ecuación para \( x \)
Combinar términos: \( 8x-38 = 90 \). Luego \( 8x=90 + 38 \), \( 8x=128 \), \( x = 16 \).
Step3: Calcular \( m\angle MON \)
Sustituir \( x = 16 \) en \( 5x - 23 \): \( 5(16)-23=80 - 23=57^{\circ} \).
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\( 57^{\circ} \)