document.write( "Question 907747: two cars start from the same place at the same time but in opposite directions. Their speeds are 80km/hr and 65km/hr. After how long will they be 580 km apart. \n" ); document.write( "
Algebra.Com's Answer #550544 by ewatrrr(24785)\"\" \"About 
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D = rt
\n" ); document.write( "80*t + 65t = 580mi
\n" ); document.write( "t = 580/145 = 4hrs
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