<PRE><B>Question 1049609</B>
: a cyclist travled 9km per hour faster than an in line skater. in the time it took the cyclist to travel 45 km, the skater had gone 30. find the speed of the skater
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Cyclist DATA:
rate = x+9 km/h ; dist = 45 km ; time = d/r = 45/(x+9) hrs
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Skater DATA:
rate = x km/h ; dist = 30 km ; time = d/r = 30/x
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Equation:
45/(x+9) = 30/x
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45x = 30x + 270
15x = 270
x = 18 km/hr (skater rate)
x+9 27 km/hr (cyclist rate)
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Cheers,
Stan H.
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