document.write( "Question 1179938: Justin can run 10 km in the same amount of time that Leo can run 12 km. If Leo can run 1 kph faster than Justin, how fast can Leo run? \n" ); document.write( "
Algebra.Com's Answer #809549 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "Justin can run 10 km in the same amount of time that Leo can run 12 km. If Leo can run 1 kph faster than Justin, how fast can Leo run?
\n" ); document.write( "
Let Leo's speed be S
\n" ); document.write( "Then Justin's is: S - 1
\n" ); document.write( "We then get the following TIME equation: \"matrix%281%2C3%2C+12%2FS%2C+%22=%22%2C+10%2F%28S+-+1%29%29\"
\n" ); document.write( "\"matrix%281%2C3%2C+6%2FS%2C+%22=%22%2C+5%2F%28S+-+1%29%29\" ----- Factoring out GCF, 2, in NUMERATORS
\n" ); document.write( "5S = 6S - 6 ----- Cross-multiplying
\n" ); document.write( "5S - 6S = - 6
\n" ); document.write( "- S = - 6
\n" ); document.write( "Leo's speed, or \n" ); document.write( "
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