Question

5. Convert into seconds:
5 hours
d. 8 hours 20 minutes
b. 18 hours
c. 3 hours 20 minutes​

Answer 1

Answer:

1 hour = 60 minutes. 1 minute - 60 seconds

5. 5*60 = 300 minutes

300*60= 18000 seconds

d. 8*60 +20 = 68 minutes

68*60= 4080 seconds

b. 18*60 = 1080 minutes

1080*60 = 64800 seconds

c. 3*60 + 20 = 200 minutes

200*60= 12000 seconds

Answer 2

Answer:

5 hours = 18000 seconds

8 hours 20 minutes = 30000 seconds

3 hours 20 minutes = 12000 seconds

Step-by-step explanation:

see to solve this question you need to know that there are -

60 minutes in one hour

60 seconds in one minute

so now 5 hours has 5 × 60 minutes that  is 300 minutes

then 300 minutes have 300 × 60 seconds that is 18000 seconds

next 8 hours and 20 minutes here first convert the hours into minutes

8 × 60 = 480 minutes then add extra 20 minutes to it which will make it

e480+20= 500minutes so this many minutes we have in 8 hours and 20 minutes. Now convert all these minutes into seconds by multiplying 60 into total minutes we got i.e 500min × 60sec = 30000 seconds.

now do all others in the same way.

thanks and good luck.