document.write( "Question 1066365: Define two variables. Write two equations and then solve.
\n" ); document.write( "Two airplanes travel toward each other from cities that are 780 km apart at speeds of 190 km/h and 200 km/h. They left at the same time. In how many hours will they meet?
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Algebra.Com's Answer #681535 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
x, the time until they \"meet\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28190%2B200%29x=780\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=780%2F390=78%2F39=highlight%282%29\"
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