document.write( "Question 407294: A motorcyclist travelled 160Km in 5 Hrs. He travelled some distance at 38KM/Hr and rest at 28Km/Hr. what distances he travelled at both speeds? \n" ); document.write( "
Algebra.Com's Answer #287123 by graphmatics(170)\"\" \"About 
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Let x be the amount of time at 38KM/Hr and y be the amount of time at 28KM/hr then
\n" ); document.write( "x + y = 5 and
\n" ); document.write( "38*x + 28*y = 160
\n" ); document.write( "So we solve this system of equations
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Solved by pluggable solver: Linear System solver (using determinant)
Solve:
\n" ); document.write( " \"+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+5%2C%0D%0A++++38%5Cx+%2B+28%5Cy+=+160+%29%0D%0A++\"
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\n" ); document.write( " Any system of equations:
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\n" ); document.write( " has solution
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\n" ); document.write( " (x=2, y=3}
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\n" ); document.write( "\n" ); document.write( "So the amount of time he traveled at 38KM/hr is 2, hence the distance traveled is 2hr*38KM/hr or 76KM
\n" ); document.write( "At 38KM/hr we get
\n" ); document.write( "3hr*28KM/hr or 84KM
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