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Convert 20 minutes into seconds (20 * 60). There are sixty seconds in a minute. This would make 1200 seconds. Then add the 45 seconds (1245). Convert 30 minutes (1/2 an hour) into seconds (30 * 60). Then subtract 1245 from 1800. This would leave 555 seconds or 9 minutes, 15 seconds. I hope this helps.
What else can I help you with?
What fraction is 19 seconds of an hour?
There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.
What is half of 7 minutes and 24 seconds?
3 mins and 42 seconds
Is 1 in a half hour is 50 mins?
No.
The number of eggs in a basket double every minute the basket is full in half an hour when was it half full?
29 mins, because at 30 mins it will have doubled the amount at 29 mins, making 29 mins halfway. it is NOT 30 mins!!
What is 20 mins. after 645 pm?
Half an hour before 12 noon
How many seconds are equal to 1 hour and 42 minutes?
1 hour = 60 minutes therefore 60 mins + 42 mins = 102 mins 102 mins x 60 seconds = 6120 seconds 6120 seconds
How many seconds are in 2 and a half mins?
150 seconds
How many seconds in an hour 30 minutes?
There are 60 seconds in a minuet and 60 minutes in an hour. Therefore one hour and 30 mins. is the same as 90 mins. 60*90= 5400 seconds.
What fraction is 19 seconds of an hour?
There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.
How many seconds are in 2 hour 4 mins?
7,440 seconds.
What is 30 mins as a decimal?
30 mins is half an hour. A half as a decimal is .50
How many seconds is there in a hour?
60 secs x 60 mins = 3600 seconds in an hour :D
What is half of 7 minutes and 24 seconds?
3 mins and 42 seconds
How many mins are in half a min?
90 seconds
Is 1 in a half hour is 50 mins?
No.
How many seconds in one hour and 17 mins?
77 × 60 = 4620 seconds
How many minutes and seconds in 3 hour?
180 mins
