<PRE><B>Question 764384</B>
As part of an exercise regimen, you walk 2 miles on an indoor track. Then you jog twice your walking speed for another 2 miles. If the total time spent walking and jogging is 1 hour, find the walking and jogging rates. 
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Walk DATA:
distance = 2 miles ; rate = x mph ; time = 2/x hrs
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Jog DATA:
distance = 2 miles ; rate = 2x mph ; time = 2/(2x) = 1/x hrs
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Equation:
time + time = 1 hr
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2/x + 1/x = 1
2 + 1 = x
x = 3 mph (Walking rate)
2x = 6 mph (Jogging rate)
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Cheers,
Stan H.
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