3) two planes leave atlanta at 3 pm est. one flies east and travels at a speed of 75 kilometers per hour slower than the other plane with is flying west. by 7 pm est, the planes are 5460 kilometers apart. what is the speed of the plane flying east? * a) 645 km/h b) 683 km/h c) 720 km/h d) 1440 km/h.

East plane speed = x

 Flew for 4 hours = 4x

West plane = (x+75)

Flew for 4 hours = 4(x+75) = 4x+300

4x +4x +300 = 5460

8x = 5160

X = 5160 /8 = 645

 East plane is flying at 645

 West plane is flying 645 + 75 = 720

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it