The following figures are similar. They are both the same shape, One is just bigger.
(2x) / 4 ......The quotient of 2 times some number and four
Speed = distance / time => time = distance / speed
speed = 3x10^8 x 60 = 180x10^8 m per minute
time = 1.5x10^11/180x10^8 = 150x10^9/180x10^8 = 5/6x10 = 8,3 minutes
5 kilometers = 5000 decimeters if that answers your question sorry ...
