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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? 8 feet 14 feet 78 feet 98 feet
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OpenStudy (jfraser):
the ratios must be equal
OpenStudy (anonymous):
98 feet
OpenStudy (anonymous):
are you sure?
OpenStudy (anonymous):
Ratio: 7/2 : x/28 simplify.... 3.5/1-->3.5 3.5*28 =98
OpenStudy (anonymous):
thanks
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OpenStudy (anonymous):
np
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