Question

1287:23-274:4+82946-6+5-987+1245-173-1287

Answer 1

Ответ:81730.45

Пошаговое объяснение:

Answer 2

To solve the expression 1287:23-274:4+82946-6+5-987+1245-173-1287, we need to perform the operations in the correct order: addition and subtraction, followed by multiplication and division (if any).

First, let's convert the time format into minutes and seconds. 1287:23 can be written as 1287 minutes and 23 seconds, and 274:4 can be written as 274 minutes and 4 seconds.

1287:23 - 274:4 is equal to (1287 * 60 + 23) - (274 * 60 + 4) = (77240 + 23) - (16440 + 4) = 77263 - 16444 = 60819.

Now we can substitute the expression with the calculated value:

60819 + 82946 - 6 + 5 - 987 + 1245 - 173 - 1287.

Adding the numbers together:

60819 + 82946 - 6 + 5 - 987 + 1245 - 173 - 1287 = 1400.

Therefore, the expression 1287:23-274:4+82946-6+5-987+1245-173-1287 evaluates to 1400.