document.write( "Question 547494: When Amy rollerskates, she moves 120 yards per minute. What is her speed in miles per hour? \n" ); document.write( "
Algebra.Com's Answer #356396 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 120 yards/minute\r \n" ); document.write( "\n" ); document.write( "=120 yards/60 seconds\r \n" ); document.write( "\n" ); document.write( "= 2 yards/second\r \n" ); document.write( "\n" ); document.write( "1 yard = 1760 mile \n" ); document.write( "1second = 1/3600 hours\r \n" ); document.write( "\n" ); document.write( "2 yards/ second ==> (2/1760)/(1/3600)= (2/1760)*(3600/1)\r \n" ); document.write( "\n" ); document.write( "=4.09 mph \n" ); document.write( " |