document.write( "Question 1151821: Brett and Julie headed north at 8 a.m. By noon Brett was 80 miles ahead of Julie. What was Brett's speed if Julie's speed was 30 miles per hour? \n" ); document.write( "

Algebra.Com's Answer #773671 by ikleyn(52805) $\"\"$ $\"About$

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document.write( "Let x be the Brett' speed.\r\n" );
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document.write( "Then you have this equation \r\n" );
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document.write( "    4x = 4*30 + 80\r\n" );
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document.write( "saying that in 4 hours traveled time Brett covered the distance of 4x miles, while Julie covered 4*30 miles \r\n" );
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document.write( "and Brett's distance was 80 miles longer then that of Julie.\r\n" );
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document.write( "From the equation,\r\n" );
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document.write( "    4x = 120 + 80 = 200,\r\n" );
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document.write( "     x            = 200/4 = 50 miles per hour.    ANSWER\r\n" );
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