Find the? car speed for each part of the trip

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Greg drove at a constant speed in a rainstorm for 273 miles.  He took a? break, and the rain stopped  He then drove 230 miles at a speed that was 7 miles per hour faster than his previous speed.  If he drove for 12 ?hours, find the? car's speed for each part of the trip.

Reference no: EM131826538

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