SOLUTION: Ann left the store and drove toward the lake at an average speed of 70 km/h. Some time later Jon left driving in the opposite direction at an average speed of 40 km/h. After Ann ha

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Question 790056: Ann left the store and drove toward the lake at an average speed of 70 km/h. Some time later Jon left driving in the opposite direction at an average speed of 40 km/h. After Ann had driven for 2 hours they were 180 km apart. Find the number of hours Jon drove.
Answer by solver91311(24713) About Me  (Show Source):
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If Ann drove for two hours at 70 km/hr, how far did she go? How much of the 180 km separation did Ann's distance account for? How much was left for Jon? How long did it take Jon to go that distance at 40 km/hr?

John

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