SOLUTION: Ryan left the science museum and drove south. Gabriella left the science museum three hours later driving 42 km/h faster than Ryan in an effort to catch up with him. After two hour
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Question 638007: Ryan left the science museum and drove south. Gabriella left the science museum three hours later driving 42 km/h faster than Ryan in an effort to catch up with him. After two hours Gabriella finally caught up. Find Ryan's average speed. Answer by solver91311(24713) (Show Source):
Sice G was going 42 km/hr faster, and she caught up in 2 hours, the "catch-up" distance must have been 84 km. That's how far R traveled during his 3 hour head start. Distance divided by rate is time. You can do the rest of your arithmetic.
John
My calculator said it, I believe it, that settles it
