Homework Help: 10th grade Academic Math

Posted by Neil on Monday, June 7, 2010 at 6:41pm.

hi can you help me with this problem please, thank you.-----------------

If the speed of an experimental car is decreased by 8km/h it completes a 140 km trip in 2 hours more than had it been traveling at its usual speed. Determine its usual speed.

10th grade Academic Math - MathMate, Monday, June 7, 2010 at 7:27pm
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