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Answer:
4) 7
5) -12
Step-by-step explanation:
4) 5x+2= 37
5x= 37-2
x= 35/5
x= 7
5) -6x-7= 65
-6x= 65+7
x= 72/-6
x= -12
Answer:
The angles are 45°, 60° , 75°
Step-by-step explanation:
<h3>
Angle sum property:</h3>
Sum of all the angles of a triangle is 180°.
Equation:
3x + 5x + 4x = 180
Combine like terms,
12x = 180
x = 180/12

3x = 3 *15 = 45°
5x = 5* 15 = 75°
4x = 4 *15 = 60°
The square root of 9 is 3
Answer: The median number of posts made is 8.5