SOLUTION: Joan wants to jog 10 miles on a circular track 1/4 mile in diameter. How many times must she circle the track? Round to the nearest lap.

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Question 1071385: Joan wants to jog 10 miles on a circular track 1/4 mile in diameter. How many times must she circle the track? Round to the nearest lap.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +C+ = the circumference of the track
+C+=+pi%2A%281%2F4%29+
+C+=+.7854+
and
+10+%2F+.7854+=+12.7324+
She must circle the track 13 times
( to nearest whole number )