Question
Liam jogged while Erika walked from the same place but in opposite directions along a straight road. After 4 hours, they were 24 km apart. Liam’s average speed was 1.3 km/h faster than Erika’s average speed. What was Erika’s average walking speed in km/h? Express your answer in decimal.
3 m

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Liam jogged while Erika walked from the same place but in opposite directions along a straight road. After 4 hours, they were 24 km apart. Liam’s average speed was 1.3 km/h faster than Erika’s average speed. What was Erika’s average walking speed in km/h? Express your answer in decimal.