document.write( "Question 78512This question is from textbook basic mathematics
\n" ); document.write( ": how tall is a tree that cast a 25-ft.shadow at the same time a 9-ft light pole casts a 15-ft shadow? \n" ); document.write( "
Algebra.Com's Answer #804423 by CubeyThePenguin(3113)\"\" \"About 
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Use proportions. x = height of tree.\r
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\n" ); document.write( "\n" ); document.write( "9/15 = x/25
\n" ); document.write( "x = (9 * 25/15) = 15\r
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\n" ); document.write( "\n" ); document.write( "The tree is 15 feet tall.
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