SOLUTION: I have two questions to ask here, the first is: 1) Pip can run four times as fast as she walks. One day she walked for 3 hours and ran for 2 hours. If she covered 55km altogethe

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: I have two questions to ask here, the first is: 1) Pip can run four times as fast as she walks. One day she walked for 3 hours and ran for 2 hours. If she covered 55km altogethe      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 408079: I have two questions to ask here, the first is:
1) Pip can run four times as fast as she walks. One day she walked for 3 hours and ran for 2 hours. If she covered 55km altogether. How fast did she walk?
The second one is:
2) How many litres of 15% sugar solution must be added to 5 lires of 10$ sugar solution to make a 12% sugar solution?
Please Help!
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If you have two questions, go back and make two posts. Read the instructions, "One question per post"

Let represent the walking rate. Then is the running rate.

Since distance equals rate times time, the distance walked must be and the distance ran must be . The sum of these distances is 55, so:



Solve for

John

My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism