Answer:
B
Step-by-step explanation:
2.
what is the middle between 2 numbers (any numbers, really) ?
you add both numbers and divide the result by 2.
the same here :
(-3 + 24) / 2 = 21/2 = 10 1/2
proof :
what is the distance from -3 to 10 1/2 ? it is 10 1/2 from 0 to 10 1/2 plus 3 from -3 to 0 = 10 1/2 + 3 = 13 1/2.
what is the distance from 10 1/2 to 24 ? it is 13 from 11 to 24, and another half from 10 1/2 to 11. so, in total 13 1/2.
both distances are equal, so it is proven for 10 1/2 to be the midpoint.
