Question

A baby fell asleep at 7:55 PM and slept for 6 3/4 hours. When did the baby wake?

2:20 AM
02:30 AM
02:40 AM
03:10 AM

Show work please

Answer 1

2:20 AM

Explanation:

To find the time that the baby woke up, we need to add 6 3/4 hours to the time that the baby fell asleep. To do this, we can convert 6 3/4 hours to a decimal by dividing the fraction 3/4 by 1:

6 3/4 hours = 6 + 3/4

= 6 + 0.75

= 6.75 hours

Then, we can convert 6.75 hours to minutes by multiplying it by 60 minutes/hour:

6.75 hours * 60 minutes/hour = 405 minutes

Since there are 60 minutes in an hour, we can find the number of hours by dividing 405 minutes by 60 minutes/hour:

405 minutes / 60 minutes/hour = 6.75 hours

Then, we can add 6.75 hours to the time that the baby fell asleep to find the time that the baby woke up:

7:55 PM + 6.75 hours = 2:20 AM

So, the baby woke up at 2:20 AM.

Answer:

2:20 AM

Answer 2

well, hmmmm let's recall 1 hour has 60 minutes, 60 minutes that's 15+15+15+15, meaning 1/4 of an hour is 15 minutes, well, 3/4 of an hour is 15+15+15 = 45 minutes.

we know the baby fell asleep at 7:55 and woke up 6 and 3/4 or 6h and 45 minutes later, well, let's nevermind the minutes for now and we'll add them later, so let's just add 7 + 6 = 13 hours, now let's add the minutes, 55 + 45 minutes, that's 100 minutes.

so the baby woke up at the 13 hours from noon and 100 minutes, that's 13 hours and 60 minutes plus 40 minutes, so we can say that's 14 hours and 40 minutes.

12 hours later from noon is just midnight, if we add 2 more hours that's the 14 hour and then add the 40 minutes, 2:40AM.