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December 19, 2014

December 19, 2014

Posted by **Jane** on Thursday, January 5, 2012 at 1:10pm.

During one year, about 163 million adults over 18 years old in the U. S. spent a total of about 93 billion hours online at home. On average, how many hours per day did each adult spend online at home? How do you write each number in scientific notation? How do you convert the units to hours per day?

- Math -
**Reiny**, Thursday, January 5, 2012 at 2:33pmaverage per year = 93 billion hrs/163 million people

= (93billion/163million) hrs/person

= 570.55 hrs/person

1 year

= 365 days

so divide the above by 365 to get hrs per day/person

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