Point X is at −21 and point Y is at 27 on a number line. A point Z divides XY so that Z is the midpoint of XY. Then the midpoint of X and Z is which rational number?
Class 8Rational Numbers on the Number LineNumber System
A21
B1
C23
D45
Step-by-Step Solution
Z=2−21+27=26/2=23. Midpoint of X(−21) and Z(23)=2−21+23=21.
Answer: A) 21
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