document.write( "Question 1107679: It took Cathy 1.81 hours to drive to her​ mother's house on Sunday morning. On her return trip on Monday ​night, traffic was​ heavier, so the trip took her 22hours. Her average speed on Monday was 55mph slower than on Sunday.What was her average speed \n" ); document.write( "
Algebra.Com's Answer #722926 by ankor@dixie-net.com(22740)\"\" \"About 
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It took Cathy 1.81 hours to drive to her​ mother's house on Sunday morning.
\n" ); document.write( " On her return trip on Monday ​night, traffic was​ heavier, so the trip took her 22 hours.
\n" ); document.write( " Her average speed on Monday was 55mph slower than on Sunday.
\n" ); document.write( "What was her average speed
\n" ); document.write( ":
\n" ); document.write( "let s = her average speed on Monday
\n" ); document.write( "then
\n" ); document.write( "(s+55) = her speed on Sunday
\n" ); document.write( ":
\n" ); document.write( "Write a distance equation, dist = speed * time, dist is the same both ways
\n" ); document.write( "22s = 1.81(s+55)
\n" ); document.write( "22s = 1.81s + 99.55
\n" ); document.write( "22s - 1.81s = 99.55
\n" ); document.write( "20.19s = 99.55
\n" ); document.write( "s = 99.55/20.19
\n" ); document.write( "s = 4.93 mph her speed average speed on Monday
\n" ); document.write( ":
\n" ); document.write( ";
\n" ); document.write( "Check this, find the distance each way (should be equal)
\n" ); document.write( "4.93(22) = 108.46 km
\n" ); document.write( "59.93(1.81) = 108.47 km \n" ); document.write( "
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