Question 664911: erin ran 1 mile on monday. if he doubles his distance each day how many miles will he run by friday Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! Each day he runs miles. where x equal 1 on Monday, 2 on tuesday, 3 on wed etc
Monday 1
Tuesday 2^1 = 2
Wed 2^2 = 4
Thur 2^3 = 8
Fri 2^4 = 16
Total is 31 miles or where x = 5
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