Q: How many seconds are there in 4.5 mins?

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ihave no idea

do 60x45 (60 seconds in a minute X 45 minutes) 2700 seconds in 45 minutes

Add the seconds first. 45+14+10 is 69 seconds, i.e. 1 min 9 secs. Mins = 9+37 (+1 from the seconds) is 47 mins. So total 47 mins 9 seconds

1 minute = 60 seconds 1 hour = 60 mins → 45 mins 45 seconds = 45 + 45/60 mins = (45 + 45/60)/60 hours = 61/80 hours distance = speed × time → distance = 56 mph × 61/80 hours = 42.7 miles.

1 minute = 60 seconds 560 seconds = 560 / 60 mins = 91/3 mins (or 9 mins 20 seconds)

1,140 seconds.

1 hour = 60 minutes therefore 60 mins + 42 mins = 102 mins 102 mins x 60 seconds = 6120 seconds 6120 seconds

how many seconds are there in 30 mins.?

I can do it in many ways:Multiply the minutes and seconds separately, then correct for 60 secs = 1 min3 mins 45 secs x 3 = 9 mins 135 secs but 60 secs = 1 min, so 135 secs = 2 mins 15 secsSo 9 mins 135 secs = 9 mins 2 mins 15 secs = 11 mins 15 secs.⇒ 3 mins 45 secs x 3 = 11 mins 15 secsWork in seconds and convert back at the end3 mins 45 secs x 3 = 225 secs x 3 = 675 secs= 11 mins 15 secsConvert the seconds to a decimal of a minute, work it out and convert back at the end3 mins 45 secs x 3 = 3.75 mins x 3 = 11.25 mins= 11 mins 15 secsI am actually more likely to work with fractions as opposed to decimals as decimals can lead to inaccuracies3 mins 45 secs x 3 = 33/4 mins x 3 = 15/4 mins x 3= 45/4 mins= 111/4 mins= 11 mins 15 secsWork with the mins and seconds directly using sexagesimal (base 60) numbersTo avoid having to invent 50 new symbols for the numbers 10-59, I use the decimal numbers, but separate the sexagesimal "digits" by colons - like a digital clock. 3 mins 45 secs x 3 = 3:45 x 345 x 3 = 15 carry 23 x 3 + carry = 9 + 2 = 11⇒ 3:45 x 3 = 11:15⇒ 3 mins 45 secs x 3 = 11 mins 15 secs.

150 seconds

18 mins. = 1080 seconds

1800 seconds are in 30 min.

one minute = 60 seconds

7,440 seconds.

=1.48*60=88.8 seconds

48 minutes = 2,880 seconds.

seconds I assume. 7500/60 is 125 mins

Days*24 = hours Hours*60 = mins Mins*60 = seconds

About 11 mins 45 seconds

8 + 37 + 0 = 45 32 + 18 + 15 = 65 = 60 + 5 Answer: 46 minutes 5 seconds

About 1,420,092,000 seconds in 45 years.

59400

120 !

3,600

60