Answer:
400 feets
Explanation:
Given the following :
Julio's speed = 350 ft/min
Luca's speed = 450ft / min
They both moved in opposite direction
Distance apart after 4 minutes :
Distance = speed * time
Julio's distance after 4 minutes :
350 ft/min × 4 minutes = 1400 feets
Luca's distance after 4 minutes :
450 ft/min × 4 minutes = 1800 feets
Distance apart in feets after 4 minutes :
(1800 - 1400) feets
= 400 feets