Respuesta :

tonb

Answer:

57°

Step-by-step explanation:

∠LOM and ∠MON are complementary angles, so they add up to 90.

This means that:

3x-15 + 5x-23 = 90 =>

8x - 38 = 90 =>

x = 128/8 = 16

So m∠MON = 5*16 - 23 = 57°

Answer:

Step-by-step explanation:

(3x-15)=90

find x

x=35

input it into the equation

42+23 =m<mon

x=45 degrees

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