Mathematics, 21.12.2019 16:31 jenm345
Derrick and mark are brothers who live in the same house. mark is at home, and derrick is 5 miles away from home. both boys begin riding their bikes at the same time. derrick rides directly home at a constant rate of 15 mph, and mark rides away from home at a constant rate of 18 mph. let d represent distance from home, and t represent time in hours. which system models this situation?
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