Harry cycles 8 kilometres in 30 minutes.
Calculate his average speed, in km/h

16km/h

Step-by-step explanation:

average speed = total distance traveled / total time taken

30 min = 0.5 h

8/0.5 = 16km/h

the answer to this question is 3/19

step-by-step explanation:

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)