The number halfway between them is 600.
500
550 is halfway between 500 and 600
(0+600)/2 = 300
575 is halfway between 550 and 600.
750
450 is half way between 300 and 600.
It is: 625
The distance between those two points is 884 miles and while Amarillo is 600 miles from Houston and difficult to term a halfway point, it the preferred stop over point on that route.
Halfway between means if we put the two numbers on the number line, we find the distance between the two numbers and if we go half that distance we get to the number we are looking for.Now the distance between 500 and 800 is 800-500 or 300.We need half of that which is 150. So now take 500+150=650 or take 800-150 which must also be 650.
The halfway point between 700 and 800 is (700 + 800) ÷ 2 = 750
600