SOLUTION: It took Keiko 15 minutes to walk 1 mile to the store. Then she walked 2 more miles from the store to the beach it took her 45 minutes. What was her average speed in miles per hou

Algebra ->  Proportions  -> Lessons -> SOLUTION: It took Keiko 15 minutes to walk 1 mile to the store. Then she walked 2 more miles from the store to the beach it took her 45 minutes. What was her average speed in miles per hou      Log On


   



Question 198129: It took Keiko 15 minutes to walk 1 mile to the store. Then she walked 2 more miles from the store to the beach it took her 45 minutes. What was her average speed in miles per hour? This is what I did:
I added the 15 min. and 45 min. and got that she walked 3 miles in 1 hour.
You would then use the formula for speed. Speed = 3 miles over 1 hour.
Keiko average speed was 3 mi/h.

Answer by arallie(162) About Me  (Show Source):