document.write( "Question 351895: what does constant mean? Salami and More Deli sells a 5 foot submarine sandwich for parties. It weighs 8 pounds. Assuming that the weight per foot is constant, what would be the length of a 12-pound sandwich? \n" ); document.write( "

Algebra.Com's Answer #251715 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
what does constant mean? Here, it just means each foot of sandwich weighs the same;
\n" ); document.write( ":
\n" ); document.write( " Salami and More Deli sells a 5 foot submarine sandwich for parties.
\n" ); document.write( " It weighs 8 pounds.
\n" ); document.write( " Assuming that the weight per foot is constant, what would be the length
\n" ); document.write( " of a 12-pound sandwich?
\n" ); document.write( ":
\n" ); document.write( "two ways to do this:
\n" ); document.write( "Find the weight of 1 foot of sandwich
\n" ); document.write( " $\"8%2F5\"$ = 1.6 lb per ft
\n" ); document.write( "then
\n" ); document.write( " $\"12%2F1.6\"$ = 7.5 ft (7 ft 6 inches)
\n" ); document.write( "Or
\n" ); document.write( "you can use a ratio equation, let x = the length of 12 lb sandwich
\n" ); document.write( " $\"x%2F5\"$ = $\"12%2F8\"$
\n" ); document.write( "Cross multiply
\n" ); document.write( "8x = 5 * 12
\n" ); document.write( "8x = 60
\n" ); document.write( "x = $\"60%2F8\"$
\n" ); document.write( "x = 7.5 ft \n" ); document.write( "

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