document.write( "Question 25095: story problems are the worst for me could somebody help?\r
\n" ); document.write( "\n" ); document.write( "An \"N-gauge\" train model is created using a scale of 1:160. If an actual train
\n" ); document.write( "engine, the \"K-4\" an early twentieth century engine, is 45 ft long, what is the length of an \"N-gauge\" model,of the model in inches? \n" ); document.write( "

Algebra.Com's Answer #13465 by Earlsdon(6294) $\"\"$ $\"About$

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A scale of 1:160 means that 1 inch on the model is equivalent to 160 inches on the real train. You can use the given scale factor in a proportion to solve this problem. It's probably easier to work in inches, so convert 45 feet to inches.
\n" ); document.write( "(45 ft.)(12 in.per ft.) = 540 inches.
\n" ); document.write( " Now do the proportions. Let x = the length of the model engine.\r
\n" ); document.write( "\n" ); document.write( " $\"1%2F160+=+x%2F540\"$ Multiply both sides by 540.
\n" ); document.write( " $\"540%2F160+=+x\"$
\n" ); document.write( " $\"x+=+3.375\"$ inches.\r
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