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Substitute to Find the Value of the Expression 2140t\frac { 2140 } { t }

question 34

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Substitute to find the value of the expression.
-A train must cover a distance of 2140 miles. The velocity, in miles per hour, of the train is 2140t\frac { 2140 } { t } where tt is the time, in hours, to complete the trip. If the train completes the trip in 20 hours, what is its velocity?


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