document.write( "Question 1070415: It took Gina 1.8 hours to drive to her​ mother's house on Saturday morning. On her return trip on Sunday ​night, traffic was​ heavier, so the trip took her 2 hours. Her average speed on Sunday was 4 mph slower than on Saturday. What was her average speed on Sunday​?
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Algebra.Com's Answer #685498 by josgarithmetic(39616)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "               SPEED      TIME     DISTANCE\r\n" );
document.write( "GOING            r         1.8       d\r\n" );
document.write( "RETURN          r-4        2         d\r\n" );
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\n" ); document.write( "\n" ); document.write( "Same distance d both ways.\r
\n" ); document.write( "\n" ); document.write( "\"%28r%29%281.8%29=%28r-4%29%282%29\"------solve for r.
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