450 - 60 - 60 - 60 - 60 - 60 - 60 - 60 - 60 = -30
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450
Is this a trick question? the answer is 7.5 hours, because there are 60 minutes in a hour so you divide 450 by 60 and you get 7.5
None, but there are 450 minutes in 71/2 hoursTo find this:Divide 450 by 60 (450 / 60)That equals 7.5.But how do we calculate this as precise hours and minutes?Take 7.5; this is 7.5 hours. The .5 is a half; so what's half of an hour? 30 minutes?So this becomes 7 hours and 30 minutes.Short method:450 / 60 = 7.5 = (.5 means half so 30 mins) = 7 hours and thirty minutes.
depending on the year 60-75 mph
11 with remainder 40.