You are here:
Basic Math/Rates
Advertisement
Question
Hello:
If an automobile can travel 50 miles in one hour (60 minutes), how long will the same automobile travel at 80 miles per hour?
How was the following solution determined to solve for the answer?
60 minutes X (50 miles/ 80 miles) = 37.5 minutes
I thank you for your reply.
Hello Kenneth,
I gather the question should be:
"How long will it take to travel the SAME DISTANCE at 80 MPH?" Yes?
If so, then...
S=since dist = rate x time, we get 50 miles = (80 miles/hr) x time
so, time = 50/80 hr = 5/8 hr = 0.625 hr = 37.5 minutes
So, yes...your calculation is correct.
Abe
- Add to this Answer
- Ask a Question
Questioner's Rating
| Rating(1-10) | Knowledgeability = 10 | Clarity of Response = 10 | Politeness = 10 |
| Comment | Yes, it is the same distance. Thanks for the reply! | ||
Related Articles
Basic Math
Answers by Expert:
Abe Mantell
Expertise
Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!
Experience
Over 15 years teaching at the college level.
Organizations belong to
NCTM, NYSMATYC, AMATYC, MAA, NYSUT, AFT.
Education/Credentials
B.S. in Mathematics from Rensselaer Polytechnic Institute
M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook
©2012 About.com, a part of The New York Times Company. All rights reserved.