Explanation Two person are walking on a straight road where, one person is walking 1.0 km/h faster than other. Let the walking speed of two persons be x and y . Then, the walking speed of first person will be x = y + 1.0 . Two persons are 7.0 km away from each other after 1.0 h. Note that, the speed is the ratio of the distance and time. That is, is Speed = distance time . Use the above note and obtain the distance walked by two persons after 1.0 h are ( 1.0 ) x and ( 1.0 ) y . Since two persons are intersection at perpendicular, the equation that represents relationship between their walk is x 2 + y 2 = 7 2 . The system of equation that depicts the walking speed of two persons are x = y + 1.0 and x 2 + y 2 = 7 2 . Convert the equation x 2 + y 2 = 7 2 in terms of x as follows. x 2 + y 2 = 7 2 y 2 = 49 − x 2 y = ± 49 − x 2 y = 49 − x 2

Mylab Math With Pearson Etext -- 18 Week Standalone Access Card -- For Basic Technical Mathematics With Calculus

11th Edition

ISBN: 9780135902912

Author: Allyn J. Washington

Publisher: PEARSON

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Chapter 14.1, Problem 38E

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The walking speed of two persons when both are 7.0 km/h apart from each other.

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Chapter 14.1, Problem 37E

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Mylab Math With Pearson Etext -- 18 Week Standalone Access Card -- For Basic Technical Mathematics With Calculus

Ch. 14.1 - In Example 7, determine how many times the rocket...Ch. 14.1 - Prob. 1E Ch. 14.1 - Prob. 2E Ch. 14.1 - Prob. 3E Ch. 14.1 - Prob. 4E Ch. 14.1 - Prob. 5E Ch. 14.1 - Prob. 6E Ch. 14.1 - Prob. 7E Ch. 14.1 - Prob. 8E Ch. 14.1 - Prob. 9E

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