A plane passes over point (A )at a velocity of 240 m/s north. 40 seconds later it passes over point B At a velocity of 260 m/s north. What is the planes average acceleration ?

and i oop

explanation:

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

age range would be the answer