document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1117506>Question 1117506</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the gift shop of the History of Flight museum, Elisa bought a kit to make a model of a jet plane. The actual plane is 21 feet long with a wingspan of 17.5 feet. If the finished model will be 12 inches long, what will the wingspan be?<BR>\n" );
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document.write( "Set up a proportion between the length and wingspan of the plane and the model:<br><BR>\n" );
document.write( "21 feet/12 inches = 17.5 feet/x inches<br><BR>\n" );
document.write( "As long as the units in the two fractions correspond, we can have mixed units; and they can be ignored in the computation.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2F12+=+17.5%2Fx ALIGN=MIDDLE  ALT=\"21%2F12+=+17.5%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F4+=+17.5%2Fx ALIGN=MIDDLE  ALT=\"7%2F4+=+17.5%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7x+=+70 ALIGN=MIDDLE  ALT=\"7x+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+10 ALIGN=MIDDLE  ALT=\"x+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "The wingspan of the model is 10 inches. </SPAN>\n" );
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