



 
Hi Ava, Suppose Graham drove 75 miles in 3 hours going at a constant speed. Then in each hour he drove 25 miles so his rate was 15 miles/hour. That is he drove \[\frac{75\mbox{ miles}}{3 \mbox{ hours}} = 3 \frac{\mbox{miles}}{\mbox{hours}}\] What if he drove 42 1/3 miles in 1 1/3 hours? Penny  


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