Answer:
x = 23
Step-by-step explanation:
Sum of 25 and x = 48
25 + x = 48
Subtract 25 from both sides
25 - 25 cancels out
48 - 25 = 23
We would be left with x = 23
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He is not correct because 3+7=10 and not 9
Answer:
A correct!!!
Step-by-step explanation:
Usatestprep
Answer:
∠MON = 57°
Step-by-step explanation:
Given that OL and ON are perpendicular lines then ∠LON = 90° and
∠LOM + ∠MON = 90, substitute values
3x - 15 + 5x - 23 = 90, that is
8x - 38 = 90 ( add 38 to both sides )
8x = 128 ( divide both sides by 8 )
x = 16
Hence
∠MON = 5x - 23 = (5 × 16) - 23 = 80 - 23 = 57°
