contestada

When a phone is on but not in use, the battery lasts 24 hours. When it is in constant use, the battery lasts 3 hours. If Nicole leaves the phone on for 9 hours, but only uses it for 60 minutes during this time, how many hours of battery are left after she uses it if she doesn’t use it anymore?

HELP

Respuesta :

Answer:

10 hours

Step-by-step explanation:

Amount used:

1 hour of use would be

1/3 of 24 = 6 hours used of the total

8/24 of 24 would be 8 hours used of the total

14 total hours would be used out of a 24 hour totals, so that leaves 10 hours of battery use left.

I am not feeling real confident about this.

mhanifa

Answer:

  • 8 hours battery life left in idle use

------------------------------------

24 hours of idle use time is equivalent to 3 hours of active use.

If it was in use for 1 hour, it is equivalent  to:

  • 24/3 = 8 hours of idle time

Since it is included in the 9 hours, it is equivalent to:

  • 9 - 1 + 8 = 16 hours

Battery life left:

  • 24 - 16 = 8 hours