SOLUTION: Baolia rode 12 mph for part of her 33 mile bike trip, but then she walked the rest because of her flat tire. The whole trip took her 3 and a half hours. If she walked at an average

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Baolia rode 12 mph for part of her 33 mile bike trip, but then she walked the rest because of her flat tire. The whole trip took her 3 and a half hours. If she walked at an average      Log On

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Question 469608: Baolia rode 12 mph for part of her 33 mile bike trip, but then she walked the rest because of her flat tire. The whole trip took her 3 and a half hours. If she walked at an average speed of 3 mph how many hours did she have to walk?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
x(12)+(3.5-x)(3)=33
12x+10.5-3x=33
9x=22.5
x=22.5/9=2.5
Baolia rode her bike for 2.5 hours and walked the remaining 3 miles in one hour..