Question

what is the coordinate of the midpoint of mn? write your answer as an integer or a decimal, or mixed number in simplest form.

Explanation:

Step1: Identify the coordinates of M and N

M = 380, N = 420

Step2: Apply mid - point formula

The mid - point formula for two points \(a\) and \(b\) on a number line is \(\frac{a + b}{2}\). Here \(a=380\) and \(b = 420\), so \(\frac{380+420}{2}\).

Step3: Calculate the sum in the numerator

\(380 + 420=800\).

Step4: Divide by 2

\(\frac{800}{2}=400\).

Answer:

400