To find: How far can it fly and return safely?
Answer to Problem 46AYU
mi the plane can fly out and return safely.
Explanation of Solution
Given:
An air rescue plane averages 300 miles per hour in still air. It carries enough fuel for 5 hours of flying time. If, upon takeoff, it encounters a head wind of 30 mi/h.
Calculation:
Effective ground speed.
against the wind.
with the wind.
Let the one-way distance; write a time equation, .
Out bound time return time 5 hrs.
Therefore .
That is .
mi the plane can fly out and return safely.
Chapter A.8 Solutions
Precalculus Enhanced with Graphing Utilities
Additional Math Textbook Solutions
Thomas' Calculus: Early Transcendentals (14th Edition)
University Calculus: Early Transcendentals (3rd Edition)
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
Glencoe Math Accelerated, Student Edition
Calculus: Early Transcendentals (3rd Edition)
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