document.write( "Question 613224: Could someone help me with this problem? Could someone explain it to me, please!\r
\n" ); document.write( "\n" ); document.write( "A scale model of a train engine is 1 and three fourths (1 3/4) inches long. A real engine is 28 feet long. If a freight car on the model train is three eights (3/8) inch long, what is the actual size of the freight car on the real train?\r
\n" ); document.write( "\n" ); document.write( "A. 6 feet\r
\n" ); document.write( "\n" ); document.write( "B. 42 feet\r
\n" ); document.write( "\n" ); document.write( "C. 72 feet\r
\n" ); document.write( "\n" ); document.write( "D. 512 feet\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #385893 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Could someone help me with this problem? Could someone explain it to me, please!
\n" ); document.write( "A scale model of a train engine is 1 and three fourths (1 3/4) inches long. A real engine is 28 feet long. If a freight car on the model train is three eights (3/8) inch long, what is the actual size of the freight car on the real train?
\n" ); document.write( "----
\n" ); document.write( "Use a proportion:
\n" ); document.write( "x/(3/8) = 28 ft/(1 3/4)in
\n" ); document.write( "------
\n" ); document.write( "x = (3/8)(28/(7/4))
\n" ); document.write( "x = (3/8)(4/7)(28)
\n" ); document.write( "x = (3/8)16
\n" ); document.write( "x = 3*2
\n" ); document.write( "x = 6 ft.
\n" ); document.write( "------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "=====================
\n" ); document.write( "A. 6 feet
\n" ); document.write( "B. 42 feet
\n" ); document.write( "C. 72 feet
\n" ); document.write( "D. 512 feet
\n" ); document.write( "
\n" ); document.write( "
\n" );