document.write( "Question 570189: The stopping distance \"d\" (in feet) for a car traveling \"v\" mph when the driver has a reaction time of \"t\" is given by: \r
\n" );
document.write( "\n" );
document.write( "d = 1.5tv + 0.06v2 \r
\n" );
document.write( "\n" );
document.write( "The reaction time of a driver is 0.5 sec. If the stopping distance is 187.5 ft, how fast is the car going (in mph)?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #368127 by arod22906(1) ![]() You can put this solution on YOUR website! I know the below is wrong... don't know what i'm doing wrong: \n" ); document.write( "1.5(.5)v+.06v^2=187.5 \n" ); document.write( ".75v+.06v^2=187.5 \n" ); document.write( ".06v^2+.75v-187.5 \n" ); document.write( "multiply 10 with everything to get rid of decimals \n" ); document.write( "0v^2+8v-1875 \n" ); document.write( "8v=1875 \n" ); document.write( "v=234\r \n" ); document.write( "\n" ); document.write( "i know this must be wrong please help. \n" ); document.write( " |