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Mathematics 9 Online
OpenStudy (anonymous):

A tree casts a shadow of 28 feet. At the same time, a biologist who is 7 feet tall casts a shadow of 2 feet. How tall is the tree? A.8 feet. B.14 feet. C.78 feet. D.98 feet.

OpenStudy (mertsj):

|dw:1334868076463:dw|

OpenStudy (mertsj):

Write the proportion.

OpenStudy (mertsj):

What is it?

OpenStudy (anonymous):

|dw:1334868627219:dw| now cross multiply: |dw:1334868648005:dw|

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