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Mathematics
OpenStudy (anonymous):
A train travels 20 feet in 1/5 second. At this same speed, how many feet will it travel in three seconds
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OpenStudy (gorv):
welcome to OS :)
OpenStudy (gorv):
first calculate speed
OpenStudy (gorv):
speed=distance /time
OpenStudy (gorv):
\[speed=\frac{ 20 }{ \frac{ 1 }{ 5 } }=20*5=100feet/\sec\]
OpenStudy (gorv):
so in 1 second = 100 feet in 3 second = 100*3=??
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