Question

Пользуясь десятичными дробями, вырази в минутах 1мин 30сек , 15 сек

Answer 1

$\frac{60}{60} + \frac{30}{60} + \frac{15}{60} = 1 + 0,5 + 0,25 = 1,75$

Answer 2

1 мин 30 сек =   1,5 минуты                    

15 сек = 0,4 минуты

Answer 3

Converting Time to Decimal Fractions

To express the time of 1 minute 30 seconds and 15 seconds in decimal fractions of a minute, we can use the following calculations:

1. 1 minute 30 seconds: - 1 minute = 1 minute = 1.0 minutes - 30 seconds = 30/60 minutes = 0.5 minutes - Total time = 1.0 minutes + 0.5 minutes = 1.5 minutes

2. 15 seconds: - 15 seconds = 15/60 minutes = 0.25 minutes

Therefore, 1 minute 30 seconds is equivalent to 1.5 minutes and 15 seconds is equivalent to 0.25 minutes.