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Taya2010 [7]
3 years ago
7

James can jog twice as fast as he can walk. He was able to jog the first 9 miles to his grandmother’s house, but then he tired a

nd walked the remaining 1.5 miles. If the total trip took 2 hours, then what was his average jogging speed?
Mathematics
1 answer:
dimulka [17.4K]3 years ago
5 0

Answer:

6 mile/hour

Explanation :



Let the speed of walking of James = x mile/hour


speed of jogging = 2x mile/hour


9/2x + 1.5/x = 2


= > (9 + 3)/2x = 2


= > 12 = 4x


= > x = 3


Average speed of walking = 3 mile/hour


Average speed of jogging = 2 * 3 = 6 mile/hour

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