SOLUTION: To prepare for a marathon​ run, Sue ran 56 56 miles before she blistered her​ heel, and then she walked 1 1 additional mile. Her running speed was 16 16 times

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Question 1108303: To prepare for a marathon​ run, Sue ran
56
56 miles before she blistered her​ heel, and then she walked
1
1 additional mile. Her running speed was
16
16 times as fast as her walking speed. She was running and walking for
9
9 hours. Find​ Sue's running speed.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
To prepare for a marathon run, Sue ran 56 miles before she blistered her heel, and then she walked 1 additional mile. Her running speed was 16 times as fast as her walking speed. She was running and walking for 9 hours. Find Sue's running speed.
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56/R + 1/W = 9
R = 16W
56/16W + 1/W = 9
56 + 16 = 144W
W = 1/2 mi/hr
R = 8 mi/hr