Mathematics, 24.01.2022 14:00 ndndndjdjdjdn

Jim and Maria run a city relay race. The race consists of 8 laps around a planned city route. Jim runs 3 of the laps
at an average speed that is 0.5 mile per hour faster than
Maria's average speed for the remaining 5 laps. What is
Jim and Maria’s combined race time? Let r represent
Maria's average speed.

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Jim and Maria run a city relay race. The race consists of 8 laps around a planned city route. Jim...

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