Question 522407: john runs track 15 to 25 minutes each school day.what is the range of time (in hours) that he runs in one week
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! john runs track 15 to 25 minutes each school day.what is the range of time (in hours) that he runs in one week
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Assuming there are 5 school days in each week you get:
5*15 <= time <= 5*25
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75 min <= time <= 125 min
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1hr 15 min <= time <= 2hr 5 min
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Cheers,
Stan H.
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Answer by solver91311(24713)  (Show Source):
You can put this solution on YOUR website!
Let  represent the number of days each week that John attends school. Based on the information you provided which is sketchy at best, there is no reason to assume that this is any particular number, except to say it must be at least 1 and no greater than 7. 7 being the most possible days in one week and at least one because the definitive statement "John runs track..." excludes zero.
So, not knowing the number, the very least he could run in one week is one day times 15 minutes, or 15 minutes. The very most he could run in one week is 7 times 25.
On the other hand, if you have a particular number in mind that equates to the term "school day", herein referred to as , the least would be  and the greatest 
The arithmetic is yours to do. Remember to divide the results of all your calculations by 60 to convert minutes to hours.
John
My calculator said it, I believe it, that settles it
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