Help me please it is urgent
Answers
Answer:
3. 205 sec
4. 1140 sec
5. 720 sec
6. 79 sec
7. 495 sec
8. 1620 sec
9. 5 hours
i dont know the rest soz
Step-by-step explanation:
Some important relations to know :-
1 minute = 60 seconds
1 second = 1 /60 minutes
1 hour = 3600 seconds
1 hour = 60 minutes
1 day = 24 hours
1 year = 365 days
___________________
3 ) 3 minutes 25 seconds = ____. seconds
We know 1 minute = 60 seconds
3 minutes = 3 (60) s
3 minutes = 180 seconds
3 minutes 25 seconds = 180 + 25 seconds
3 minutes 25 seconds = 205 seconds
________________________
4) 19 minutes = ___ seconds
As we know 1 minute = 60 seconds
19 minutes = 19 × 60 seconds
19 minutes = 1140 seconds
______________________
5) 12 minutes = ____ seconds
1 minute = 60 seconds
12 minutes = 12 × 60 seconds
12 minutes = 720 seconds
_________________________
6) 1 minute 19 seconds = ____ seconds
1 minute = 60seconds
1 minute 19 seconds = 60 seconds + 19 seconds
1 minute 19 seconds = 79 seconds
___________________
7) 8 minutes 15 seconds ___ seconds
1 minute = 60 seconds
8 minutes 15 seconds = 8 × 60 seconds + 60 seconds
8 minutes 15 seconds = 480 seconds + 60 seconds
8 minutes 15 seconds = 540 seconds
_____________________
8) 27 minutes = ___ seconds
1 minute = 60 seconds
27 minutes = 27 × 60 seconds
27 minutes = 1620 seconds
___________________________
9) 18 , 000 seconds = ___ hours
1 hour = 3600 seconds
1 second = 1 / 3600 hrs
18,000 seconds = 18,000/3600 hrs
18, 000 seconds = 5 hours
____________________________
10 ) 4 hours 35 minutes = ___ seconds
4 × 3600 seconds + 35 × 60 seconds
14,400 seconds + 2100 seconds
4 hours 35 minutes= 16,500 seconds
______________________________
11 ) 1 day 1 hour = ____ minutes
1 day = 24 hours
1 day 1 hour = 24 hours + 1 hour
1 day 1 hour = 25 hours
1 hour = 60 minutes
25 hours = 25 × 60 minutes
25 hours = 1500 minutes
_________________________
12) 34 days 576 hours = ___ days
576 hours = 576 / 24 days
576 hours = 24 days
34 days 576 hours = 34 days + 24 days = 58 days
________________
13 ) 2450 seconds ___ hours
1 hr = 3600 seconds
1 second = 1 /3600 hrs
2450 seconds = 2450/3600 = 0.68 hrs