Question 681743
rate = {{{distance/time}}}
...
Therefore, time = {{{distance/rate}}}
{{{18/(50/60) = 18(60/50) = 1080/50  = highlight_green(21.6)}}} minutes
.....................
Have more questions? 
Email: HomeworkHelpers@readingboosters.com
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com 
Wanting for others what we want for ourselves.