SOLUTION: in 1991 the separation between college football goalpost uprights was reduced from 23 feet 4 inches to 18 feet 6 inches. to the nearest tenth of a percent, what was the reduction?

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Question 280030: in 1991 the separation between college football goalpost uprights was reduced from 23 feet 4 inches to 18 feet 6 inches. to the nearest tenth of a percent, what was the reduction?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(23*12+4)-(18*12+6)
(276+4)-(216+6)
280-222=58 inches less.
58/280=.21% reduction.