Acc. to midpoint theorem,
15={(2x+9) + (4x-15)}/2
⇒ 30=2x+9+4x-15
⇒ 30-9+15=6x
⇒ 36/6=x
⇒6=x
WZ= 4x-15
=4*6-15
=24-15=9
The equation for the horizontal line is
y=3
Answer:
6
Given expression:
Simplify following inside parenthesis
If following is |-a| then |-a| = a
Evaluate following
Given:
The number is
.
To find:
The location of the given number of the number line.
Solution:
We have,

It can be written as



It means the number is less than -1 but more than -2. So, the number lies between -2 and -1.
The mixed fraction form of given number is



Divide the number in 5 equal parts between two consecutive integers.
Now each unit represents
.
Since
, therefore, it is 2 units left from -1.
The number line is given below.
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