contestada

A passenger plane left Rome and flew
toward Dublin at an average speed of 400
mph. A cargo plane left four hours later
and flew in the opposite direction with an
average speed of 270 mph. Find the
number of hours the cargo plane needs to
fly before the planes are 4280 mi apart.

Respuesta :

nkeenan172

Answer:

23.6 hours

Step-by-step explanation:

by the time the b plain leaves plain a is already at 1200miles and its moveing at a pase of 130 mph faster so every hour you add 130 till you reach 4190 wich is 23  than you devide 90 by 130 and get .6 adding.

23.6