document.write( "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. \n" ); document.write( "

Algebra.Com's Answer #401970 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "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.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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