121k views
3 votes
At a certain time of day, a person 6 ft tall casts a 4 ft shadow. How long is the shadow cast by a 21 ft tree at the same time? A. 12 ft B. 14 ft C. 19 ft D. 15 Ft

1 Answer

3 votes

we have

6 ft of a person ----> 4 ft shadow

21 ft of a tree -------> x


\begin{gathered} (6)/(21)=(4)/(x) \\ 6* x=21*4 \\ 6x=84 \\ (6x)/(6)=(84)/(6) \\ x=14 \end{gathered}

answer: B. 14 ft

User Danine
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories