document.write( "Question 945280: Will you please explain a step by step of how to answer this question:\r
\n" ); document.write( "\n" ); document.write( "Kristin is driving on the highway at 60 miles per hour. How long will it take Kristin to reach a rest area 90 miles away? \n" ); document.write( "
Algebra.Com's Answer #576435 by Alan3354(69443)\"\" \"About 
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Kristin is driving on the highway at 60 miles per hour. How long will it take Kristin to reach a rest area 90 miles away?
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\n" ); document.write( "distance = rate*time
\n" ); document.write( "or,
\n" ); document.write( "rate = d/t
\n" ); document.write( "To get miles per hour, you divide the miles by the hours.
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\n" ); document.write( "distance = rate*time
\n" ); document.write( "d = r*t
\n" ); document.write( "Going 60 mi/hr, you go 60 miles in an hour. Is that not obvious?
\n" ); document.write( "Then, in another 1/2, you go another 30 miles. 1/2 the time, 1/2 the distance.
\n" ); document.write( "--> 90 miles in 1.5 hours
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\n" ); document.write( "t = d/r
\n" ); document.write( "t = 90 mi/60 mi/hr
\n" ); document.write( "t = 1.5 hours
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\n" ); document.write( "That's a lot to say about such a simple concept. \n" ); document.write( "
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