document.write( "Question 12757: A model airplane is made to the scale 1 inch to 24 inches. If the wing of the actual plane is 18 feet long, how long will the model wing be? \n" ); document.write( "

Algebra.Com's Answer #6466 by Earlsdon(6294) $\"\"$ $\"About$

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You can use proportions to solve this problem.\r
\n" ); document.write( "\n" ); document.write( "24 inches/1 inch = 18 ft/x ft\r
\n" ); document.write( "\n" ); document.write( "But change the feet to inches. 18 ft = (12\"/ft)(18 ft) = 216\"\r
\n" ); document.write( "\n" ); document.write( " $\"24%2F1+=+216%2Fx\"$ Solve for x. Multiply both sides by x.\r
\n" ); document.write( "\n" ); document.write( " $\"24x+=+216\"$ Divide both sides by 24.\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+9\"$ \r
\n" ); document.write( "\n" ); document.write( "The model wing will be 9 inches long.\r
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