SOLUTION: bob ran 10000 meter race in 26minutes and 22.75 seconds. what was his average speed in km/h. thankyou

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Question 812292: bob ran 10000 meter race in 26minutes and 22.75 seconds. what was his average speed in km/h. thankyou
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
First, convert minutes to seconds
+26+ min x +60%2F1+ sec/min = +1560+ sec
+1560+%2B+22.75+=+1582.75+
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Do this conversion:
( m / sec ) x ( km / m ) x ( sec / min ) x ( min / hr ) = ( km / hr )
+%28+10000+%2F+1582.75+%29%2A%28+1+%2F+1000+%29%2A%28+60%2F1+%29%2A%28+60%2F1+%29+
+10+%2F+1582.75+%29%2A3600+
+36000+%2F+1582.75+=+22.745+
Average speed
is 22.745 km/hr
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check:
+10+%2F+%28+26%2F60+%29+=+600%2F26+
+23.077+
( just a rough check )