You are the greatest of all time if u me two planes leave atlanta at 3pm est. one flies east and travels at a speed of 75 kilometers per hour slower than the other plane witch 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. 683km/h c. 720 km/h d . 1440 km/h

speed of plane flying east = x

speed of plane flying west = x+75

 total speed = 2x+75

distance after 4 hours ( 7-3) = 8x+300

8x+300 = 5460

8x = 5160

x = 5160/8 = 645

 speed of plane flying east = 645 km/h

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.