Derek drove 18 miles to the airport to pick up his sister and then returned home. On the return trip he drove two times faster then he did on the trip there. If his total driving time was 1 hour, what was his driving speed to and from the airport?

Derek drove 18 miles to the airport to pick up his sister and then returned home. On the return trip he drove two times faster then he did on the trip there. If his total driving time was 1 hour, what was his driving speed to and from the airport?

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter1: Introduction To Algebra

Section: Chapter Questions

Problem 10CT

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Question

Derek drove 18 miles to the airport to pick up his sister and then returned home. On the
return trip he drove two times faster then he did on the trip there. If his total driving time
was 1 hour, what was his driving speed to and from the airport?

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