document.write( "Question 429691: Girl drives or bikes from her house to the park.Her speed when driving is 36mph, and her speed when biking is 12mph. If it takes her 1/2 hr less to drive, how long does it take her to get to the park and how long is the park from her home? \n" ); document.write( "
Algebra.Com's Answer #298465 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Girl drives or bikes from her house to the park. \n" ); document.write( "Her speed when driving is 36mph, and her speed when biking is 12mph. \n" ); document.write( " If it takes her 1/2 hr less to drive, how long does it take her to get to the \n" ); document.write( " park and how long is the park from her home? \n" ); document.write( ": \n" ); document.write( "Let d = distance to the park \n" ); document.write( ": \n" ); document.write( "Write a time equation, time = dist/speed \n" ); document.write( ": \n" ); document.write( "Bike time - drive time = .5 hr \n" ); document.write( " \n" ); document.write( "Multiply by 36, results: \n" ); document.write( "3d - d = .5(36) \n" ); document.write( "2d = 18 \n" ); document.write( "d = \n" ); document.write( "d = 9 mi to the park \n" ); document.write( ": \n" ); document.write( "Find the times \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "------------------------ \n" ); document.write( "diff: .5 hrs, confirms our solutions \n" ); document.write( " |