Mathematics, 22.07.2019 07:00 kyrabrown33

Maria drove from chicago, illinois, to milwaukee, wisconsin, a distance of 90 miles, at a mean speed of 56 miles per hour. on her return trip, the traffic was much heavier, and her mean speed was 49 miles per hour. find maria's mean speed for the round trip. hint: divide the total distance by the total time. (round the answer to one decimal place.)

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Maria drove from chicago, illinois, to milwaukee, wisconsin, a distance of 90 miles, at a mean speed...