Question

13h5min-3*(2h48min:6+3h47min)

Answer 1

Ответ:

20 min

вот ответ надеюсь помогла

Answer 2

To calculate this expression, let's break it down step by step:

1. First, calculate the value inside the parentheses: 2 hours and 48 minutes divided by (6 + 3 hours and 47 minutes):

   2h48min ÷ (6 + 3h47min) = 2h48min ÷ 9h47min

2. Now, divide 2 hours and 48 minutes by 9 hours and 47 minutes. To do this, you should convert everything to a common unit, such as minutes:

   2h48min = 2 * 60 + 48 = 168 minutes 9h47min = 9 * 60 + 47 = 587 minutes

   168 minutes ÷ 587 minutes ≈ 0.2866 (rounded to four decimal places)

3. Now, substitute this result back into the original expression:

   13 hours and 5 minutes - 3 * 0.2866

4. Finally, multiply 3 by 0.2866:

   3 * 0.2866 ≈ 0.8598

5. Subtract this result from 13 hours and 5 minutes:

   13h5min - 0.8598 ≈ 12 hours and 4.4068 minutes

So, 13 hours and 5 minutes minus 3 times the result of (2 hours and 48 minutes divided by 6 plus 3 hours and 47 minutes) is approximately equal to 12 hours and 4.4068 minutes.