ha328
05.07.2019 •
Mathematics
If you spend 7 hours a day sleeping what fraction of the day are you asleep?
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Ответ:
7/24
Step-by-step explanation:
Ответ:
7/24 sleeping
Step-by-step explanation:
there are 24hrs in a day
7 of them are sleeping.
Ответ:
At the end of the day 797 lockers were closed.
Step-by-step explanation:
So first of all you need to find out how many even numbers there are from 1-900 (which is 450) so you know that 450 are open. In the 3 multiplication tables every second number is even so you know that half of the 450 lockers that was opened was closed again: this meant that 225 lockers remained open.
You also know that every number in the 4 multiplication tables is the second number in the 2 multiplication tables so half of them are closed but you also know that the 900th locker was opened so now you have 113.
So to conclude you do 900-113 which gives you 797 (this is because 113 is the amount of lockers that is open)