Posted by Anonymous on .
Brenda left the hardware store and drove toward the recycling plant at an average speed of 20mph. Perry left one hour later and drove the same directions but with an average speed of 30 mph. find the number of hours Brenda drove before Perry caught up.

math word problems 
Reiny,
let Brenda's time driving be t hrs
then Peryy drove for t1 hrs.
20t = 30(t1)
20t = 30t  30
10t = 30
t = 3
I will leave it up to you to answer the actual question