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OpenStudy (anonymous):

Milla and Luka are 3 kilometers apart and walking toward each other. Milla's average speed is 5 kilometers per hour and Luka's is 4 kilometers per hour. a. 5t+4t=1 b. 5t+4t=3 c. 5t-4t=0 d. 5t-4t=3

Mercury:

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