SOLUTION: Practice Age word Problem Paul and Isaac both leave the internet cafe at the same time, but in opposite directions. If Isaac travels 7 mph faster than Paul and after 7 hours th

Algebra ->  Linear-equations -> SOLUTION: Practice Age word Problem Paul and Isaac both leave the internet cafe at the same time, but in opposite directions. If Isaac travels 7 mph faster than Paul and after 7 hours th      Log On


   

Question 1175276: Practice Age word Problem
Paul and Isaac both leave the internet cafe at the same time, but in opposite directions. If Isaac travels 7 mph faster than Paul and after 7 hours they are 161 miles apart, how fast is each traveling?
Paul is traveling__________mph.
Isaac is traveling_________mph.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
D = rt   Traveling opposite directions: 161mi apart after 7 hrs 
 xmph*7hr + (x+7)mph*7hr = 161mi
  14x = 161 - 49
    14x = 112
      x = 8mph, Paul's rate  and Isaac's rate is 15mph

 56mi + 105mi = 161mi  checks.   
Wish You the Best in your Studies.