A6 foot tall man is walking at a rate of 40 metres per mimite directly away from a wall with astrong light mounted on it. When he is 10 metres from the wall, he casts a shadow 20 metres long.At what rate is the length of his shadow increasing when he is 30 metres from the wall?

Given query is to find the rate of change of height of the shadow.

Answered: A6 foot tall man is walking at a rate…

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

Chapter3: Solving Equation And Problems

Section3.5: Equations With The Variable On Both Sides

Problem 16P

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A6 foot tall man is walking at a rate of 40 metres per mimite directly away from a wall with a toong light soonted on it. When be is 10 metres from the wall, he casts a shadow 20 metres long At what ate is the length of his shadow increasing when he is 30 mietres from the wall?