document.write( "Question 699116: Sandy biked @ 15 mph for a time then walked @ 5 mph. She traveled a total of 75 miles. Had she biked the whole time she would have traveled 135 miles. How many hours did she walk?
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Algebra.Com's Answer #431230 by lynnlo(4176)\"\" \"About 
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she walked 6 hours \n" ); document.write( "
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