document.write( "Question 592255: One day Ayaan covered a distance of 24 km at x km/hr and another 40 km at y km/hr. Next day he covered 18 km at x km/hr and another 48 km at y km/hr. If each day he took 9 hours to complete his journey, find the corresponding values of speed of x and y. \n" ); document.write( "
Algebra.Com's Answer #375926 by ankor@dixie-net.com(22740)\"\" \"About 
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One day Mayan covered a distance of 24 km at x km/hr and another 40 km at y km/hr.
\n" ); document.write( " Next day he covered 18 km at x km/hr and another 48 km at y km/hr.
\n" ); document.write( " If each day he took 9 hours to complete his journey, find the corresponding values of speed of x and y.
\n" ); document.write( ":
\n" ); document.write( "Write a time equation for each day
\n" ); document.write( ":
\n" ); document.write( "\"24%2Fx\" + \"40%2Fy\" = 9
\n" ); document.write( "and
\n" ); document.write( "\"18%2Fx\" + \"48%2Fy\" = 9
\n" ); document.write( ":
\n" ); document.write( "Multiply the 1st equation by 1.2, subtract the 2nd equation
\n" ); document.write( "\"28.8%2Fx\" + \"48%2Fy\" = 10.8
\n" ); document.write( "\"18%2Fx\" + \"48%2Fy\" = 9
\n" ); document.write( "---------------------------subtraction eliminates y
\n" ); document.write( "\"10.8%2Fx\"} + 0 = 1.8
\n" ); document.write( "10.8 = 1.8x
\n" ); document.write( "x = \"10.8%2F1.8\"
\n" ); document.write( "x = 6 km/hr
\n" ); document.write( ":
\n" ); document.write( "Find the y using the 1st day equation
\n" ); document.write( "\"24%2F6\" + \"40%2Fy\" = 9
\n" ); document.write( "4 + \"40%2Fy\" = 9
\n" ); document.write( "\"40%2Fy\" = 9-4
\n" ); document.write( "40 = 5y
\n" ); document.write( "y = 40/5
\n" ); document.write( "y = 8 km/hr
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solutions in the 2nd day equation
\n" ); document.write( ":
\n" ); document.write( "\"18%2F6\" + \"48%2F8\" = 9
\n" ); document.write( "3 + 6 = 9
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