document.write( "Question 1104387: Harry drove for 5 hours on the freeway, then decreased his speed by 20 miles per hour and drove for 2 more hours on a country road. If his total trip was 4422 miles, then what was his speed on the freeway \n" ); document.write( "

Algebra.Com's Answer #719123 by josgarithmetic(39620) $\"\"$ $\"About$

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\n" ); document.write( "Harry drove for 5 hours on the freeway, then decreased his speed by 20 miles per hour and drove for 2 more hours on a country road. If his total trip was 4422 miles, then what was his speed on the freeway
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document.write( "FREEWAY         r          5\r\n" );
document.write( "COUNTRY         r-20       2\r\n" );
document.write( "TOTAL                      7             4422\r\n" );
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\n" ); document.write( "\n" ); document.write( "Variable assigned and information tabulated according to problem description.
\n" ); document.write( "Fill in the missing pieces.\r
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document.write( "              SPEED      TIME        DISTANCE\r\n" );
document.write( "FREEWAY         r          5         5r\r\n" );
document.write( "COUNTRY         r-20       2         2(r-20)\r\n" );
document.write( "TOTAL                      7          4422\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solve the equation $\"highlight_green%285r%2B2%28r-20%29=4422%29\"$ .\r
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\n" ); document.write( "\n" ); document.write( "You might get a strange value for r. The problem is not the best made-up exercise example.\r
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\n" ); document.write( "\n" ); document.write( "(637 mph, for r; recheck your original problem description.) \n" ); document.write( "

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