document.write( "Question 593284: I have a 4th grader trying to solve a math word problem. I need to help her and show her the reasoning behind the answer. Please help!\r
\n" ); document.write( "\n" ); document.write( "How long can long-legged spiders crawl?
\n" ); document.write( "clue: Dante rides his bike 8 miles per hour, racing the fastest spider. After a half-hour, the spider is 1 mile ahead of him. I already know the answer is 10, but I am trying to teach her the reasoning.
\n" ); document.write( "

Algebra.Com's Answer #376265 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
if Dante can ride 8 miles per hour; in half an hour, he rides half of 8 or 4 miles\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "in that same half hour; the spider goes one mile more than Dante, or 5 miles\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if the spider can go 5 miles in a half hour; he can go twice that in an hour, or 10 miles per hour
\n" ); document.write( "
\n" );