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## Homework Statement

If Terry had run 2.0 km/h faster, he would have taken 30 minutes less to cover a 25 km run. What was Terry's running speed?

## Homework Equations

d=vt

## The Attempt at a Solution

equation 1

25 = xy

equation 2

25 = (x +2)(y-0.5)

? Is this right? assuming x = his speed and y = his time