About 5 minutes: 60/4=15 then 15*3=45 and so 45/9 is 5 about 5 minutes an application
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Sorry i got nothing for you .. but i'll try to solve it shortly.
You could multiply that fraction by (1 hour / 3,600 seconds) .
(18,000 mile / 1 hour) x (1 hour / 3,600 second) =
(18,000 x 1) / (1 x 3,600) (mile-hour) / (hour-second) =
(18,000 / 3,600) (mile / second) = <span>5 mile/second
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