braddog5450
14.10.2019 •
Mathematics
Arlene sleeps for seven hours and 20 minutes each night how many hours of sleep does she get in a week right your answer as a mixed number
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Ответ:
51 and 1/3 hours
Step-by-step explanation:
7 *7 49
1/3*7=7/3=2 1/3 + 49= 51 1/3
Ответ:
ANSWER:
Arlene is getting hours of sleep in a week.
SOLUTION:
Given, Arlene sleeps for seven hours and 20 minutes each night
We need find how many hours of sleep does she get in a week as a mixed number?
Now, total sleeping time for each night is 7 hours and 20 minutes
Let us convert hours in to minutes first and then in last we can convert it again to hours.
Sleeping time per one night = 7 hours + 20 minutes
= 7 x 60 minutes + 20 minutes
= 420 + 20 minutes
= 440 minutes
Now, sleeping time per one week = sleeping time per one night x 7 nights
= 440 x 7
= 3080 minutes
Now, sleeping time per week in hours =
[20 is remainder]
Hence Arlene is getting hours of sleep in a week.
Ответ:
y=x+12
Step-by-step explanation:
1/1= y-6/x+6
y-6=x+6
y=x+12