document.write( "Question 622298: Person A and person B start from the same location, at the same time. They ride their bikes in opposite directions for 3 hours, at which time they are 102 miles apart. person A rides 4 miles per hour faster than person B. Find the rate of each rider. \r
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document.write( "I am having trouble figuring out the equation. I made a table that looks like this:
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document.write( " D R T
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document.write( "A r+4 3
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document.write( "B r 3 \n" );
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Algebra.Com's Answer #391283 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Person A and person B start from the same location, at the same time. They ride their bikes in opposite directions for 3 hours, at which time they are 102 miles apart. person A rides 4 miles per hour faster than person B. Find the rate of each rider. \n" ); document.write( "** \n" ); document.write( "let x=rate of rider B \n" ); document.write( "x+4=rate of rider A \n" ); document.write( "distance=travel time*rate \n" ); document.write( ".. \n" ); document.write( "3x+3(x+4)=102 \n" ); document.write( "3x+3x+12=102 \n" ); document.write( "6x=90 \n" ); document.write( "x=15 \n" ); document.write( "x+4=19 \n" ); document.write( "ans: \n" ); document.write( "rate of rider B=15 mph \n" ); document.write( "rate of rider A=19 mph \n" ); document.write( " \n" ); document.write( " |