The Mecklanberg public school district stipulates that a standard school day will average at least 5.5 hr excluding meal breaks. For the first 4 days of one school week, bad weather resulted in school days of 4 hr, 6.5 hr, 3.5 hr, 6.5 hr. How long must the friday school day be in order to average at least 5.5 hr for the week?
What would that look like if written as an inequality?

Question

The Mecklanberg public school district stipulates that a standard school day will average at least 5.5 hr excluding meal breaks.  For the first 4 days of one school week, bad weather resulted in school days of 4 hr, 6.5 hr, 3.5 hr, 6.5 hr.  How long must the friday school day be in order to average at least 5.5 hr for the week?
What would that look like if written as an inequality?

anonymous · Answer

The expression for the mean would be:
(4 + 6.5 + 3.4 + 6.5 + F)/5

anonymous · Answer

Where F is the length of the school day on Friday.

anonymous · Answer

What would that look like if written as an inequality?