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eziwest
maurice  drove faster, because if you minus both side and divide it by the how you will find out that it was Maurice  
apologiabiology
rate is distance/time
320 miles in 8 hours
320=distance
8=time
320/8=rate=40miles per hour

230=distance
5=time
230/5=rate=46 miles per hour
46>40
46-40=6
maruce faster by 6 miles per hour