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Mathematics, 30.06.2019 01:00 sugandiwoodbine

Simplify each expression. a diesel train traveled to the repair yards andback. it took two hours longer to go there thanit did to come back. the average speed on thetrip there was 70 km/h. the average speed onthe way back was 80 km/h. how many hoursdid the trip there take? a) 15 hoursc) 25 hoursb) 16 hoursd) 10 hours

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