document.write( "Question 1184129: Determine number of acres in a field if the length is to the width as 7 is to 3. A person is walking at 4 mph for an hr. and 15 min. around the field.\r
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\n" ); document.write( "Determine number of acres in a field if the length is to the width as 7 is to 3. A person is walking at 4 mph for an hr. and 15 min. around the field.\r
\n" ); document.write( "\n" ); document.write( "Not sure how to solve.
\n" ); document.write( "

Let multiplicative factor for length and width be x
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document.write( "Then length = 7x, and width = 3x
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document.write( "Perimeter of field: 2(7x + 3x) = 2(10x) = 20x
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document.write( "Walking at 4 mph for 1 hour and 15 min, or for , we get: 
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document.write( "With x being , length = , and width = 
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document.write( "Since acreage denotes AREA, we get area as:  \n" );
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