Answer:
∠MNO = 51°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180, that is
3x + 15 + 2x + 25 + 5x + 10 = 180 ← simplify left side
10x + 50 = 180 ( subtract 50 from both sides )
10x = 130 ( divide both sides by 10 )
x = 13
∠MNO = 2x + 25 = (2 × 13) + 25 = 26 + 25 = 51°
Answer:
x = -4.5
Step-by-step explanation:
<u><em>Solving the equation</em></u> :
Answer: Paul has not posted 6 fliers still.
Explanation: Two thirds of 45 is 30. 45-30=15. 3 fifths of 15 is 9. 15-9=6. This shows Paul will still have 6 fliers,
Answer:
8
Step-by-step explanation:
average is calculated as
average =
= 13 ( multiply both sides by 2 )
sum of 2 eldest = 26
Then for the 4 children
average = = = 8