document.write( "Question 908573: a car travels 1 km in 1 minute. to travel 1 km in 40 seconds, by how many percent must the speed of the car be increased? \n" ); document.write( "
Algebra.Com's Answer #551269 by Alan3354(69443)\"\" \"About 
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a car travels 1 km in 1 minute. to travel 1 km in 40 seconds, by how many percent must the speed of the car be increased?
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\n" ); document.write( "1 km in 2/3 minutes --> 1.5 km/minute
\n" ); document.write( "= a 50% increase in speed
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