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EleoNora [17]
3 years ago
12

On a trip of d miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed

was y miles per hour. The average speed for the round trip was 30 miles per hour.
Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0
Mile x was 15 miles long per hour while Y was 15 miles per hour on the two trips
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