Prealgebra
posted by rosalind .
Jack runs 275 miles per day during soccer season. He has already run 25 miles this morning. He plans to run 2.5 miles each day. What is the fewest number of days he will need to reach his goal?

Prealgebra 
Steve
in n days, he runs 2.5n miles
he has already run 25 miles
so, after n more days, he will have run
25 + 2.5n miles
If that totals 275 moles, then
25 + 2.5n = 275
2.5n = 250
n = 100
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