document.write( "Question 318868: Please help me solve how many seconds it will take a car going 45 mph to travel 420 feet. Thank you! \n" ); document.write( "
Algebra.Com's Answer #228271 by solver91311(24713) You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "First convert 45 miles per hour to feet per second. The first step to that conversion is to do a quick calculation in your head so that you will know that the calculated answer is reasonable. Half of 45 rounded down is 22, 22 plus 45 is 67 -- so 67 feet per second is a good estimate of 45 miles per hour. Now do it with the calculator.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Comparing that result to the \"in the head estimate\" tells us we are on the right track.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now all you need to do is divide 420 feet by 66 feet per second. I'll leave that arithmetic up to you.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |