# SOLUTION: Nancy can ride her bike uphill at eight kilometers per hour, and downhill at twelve kilometers per hour.She biked up the hill a certain distance and then biked back down the hill t

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Travel -> SOLUTION: Nancy can ride her bike uphill at eight kilometers per hour, and downhill at twelve kilometers per hour.She biked up the hill a certain distance and then biked back down the hill t      Log On

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 Question 412621: Nancy can ride her bike uphill at eight kilometers per hour, and downhill at twelve kilometers per hour.She biked up the hill a certain distance and then biked back down the hill to her starting point.The entire trip took one hour.How far did she bike up the hill?Answer by josmiceli(9645)   (Show Source): You can put this solution on YOUR website!she made 2 trips, one at 8 km/hr, the other at 12 km/hr The total time was 1 hour I'll say = time for uphill trip, = time for downhill trip. 1st trip: 2nd trip: This is 2 equations and 2 unknowns, so it's solvable Set the 's equal to eachother (both trips are same distance) hr Now solve for km km She biked 4.8 km up the hill check answer: OK