SOLUTION: Barbara lives 16 miles from the beach, and her friend Josef lives 20 miles from the beach. If Barbara and Joe leave their homes at the same time, and Barbara drives 60 miles per ho

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Barbara lives 16 miles from the beach, and her friend Josef lives 20 miles from the beach. If Barbara and Joe leave their homes at the same time, and Barbara drives 60 miles per ho      Log On


   

Question 1139952: Barbara lives 16 miles from the beach, and her friend Josef lives 20 miles from the beach. If Barbara and Joe leave their homes at the same time, and Barbara drives 60 miles per hour, how fast will Joe need to drive to arrive at the beach at the exact same time as Barbara?
Answer by ikleyn(52812) About Me  (Show Source):
You can put this solution on YOUR website!
.
Use the equation


    16%2F60 = 20%2Fr


saying that they spent the same time.

"r" is Joe's speed.


r = %2820%2A60%29%2F16 = 75 miles per hour.    ANSWER