document.write( "Question 380152: two cars start from points 420 miles apart and travel toward each other. They meet after 3. 5hours. Find the average speed of each car if one travels 30 mph slower than the other \n" ); document.write( "
Algebra.Com's Answer #269815 by mananth(16946)\"\" \"About 
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Distance = 420 miles
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\n" ); document.write( "speed of 1 car = x
\n" ); document.write( "speed of other car = x-30
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\n" ); document.write( "time they meet = 3.5 hours
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\n" ); document.write( "since they are travelling towards each other add up the speeds
\n" ); document.write( "x+x-30= 2x-30
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\n" ); document.write( "t= d/r
\n" ); document.write( "3.5=420/(2x-30)
\n" ); document.write( "multiply by (2x-30)
\n" ); document.write( "3.5(2x-30)=420
\n" ); document.write( "7x-105=420
\n" ); document.write( "+105
\n" ); document.write( "7x=420+105
\n" ); document.write( "7x=525
\n" ); document.write( "/7
\n" ); document.write( "x=75 mph ....speed of one car
\n" ); document.write( "speed of other car = 75 -30 = 45 mph
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\n" ); document.write( "m.ananth@hotmail.ca
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