Mathematics, 01.08.2021 23:10, nehemiahj85

Jamal traveled a distance of 520 miles in 9 hours. Part of the time, his rate of speed was 55 mph. The rest of the time his rate of speed was 60 mph. How long did Jamal travel at each rate?

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Jamal traveled a distance of 520 miles in 9 hours. Part of the time, his rate of speed was 55 mph. T...