SOLUTION: When Fernando and Arika pass each other on their bikes going opposit direction, Fernando is riding ar 22 mph, and Arika is pedaling at 18 mph. If they continue at those speeds, aft

Algebra ->  Linear-equations -> SOLUTION: When Fernando and Arika pass each other on their bikes going opposit direction, Fernando is riding ar 22 mph, and Arika is pedaling at 18 mph. If they continue at those speeds, aft      Log On


   



Question 1127386: When Fernando and Arika pass each other on their bikes going opposit direction, Fernando is riding ar 22 mph, and Arika is pedaling at 18 mph. If they continue at those speeds, after how long will they be 100 miles apart?
Found 2 solutions by Boreal, josmiceli:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Their combined speed apart is 40 mph. It will take 2 1/2 hours for them to be 100 miles apart.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +t+ = time in hrs when they will
be 100 mi apart
I can add their speeds
+100+=+%28+22+%2B+18+%29%2At+
+100+=+40t+
+t+=+2.5+ hrs