document.write( "Question 992007: a plane is climbing to its cruising altitude and is currently 1/4 of the way up. after climbing another 16000 feet, it is 2/3 of the way. what is the final cruising altitude of the plane? \n" ); document.write( "

Algebra.Com's Answer #611708 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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a plane is climbing to its cruising altitude and is currently 1/4 of the way up.
\n" ); document.write( " after climbing another 16000 feet, it is 2/3 of the way.
\n" ); document.write( " what is the final cruising altitude of the plane?
\n" ); document.write( ":
\n" ); document.write( "let a = the cruising altitude
\n" ); document.write( " $\"1%2F4\"$ a + 16000 = $\"2%2F3\"$ a
\n" ); document.write( "16000 = $\"2%2F3\"$ a - $\"1%2F4\"$ a
\n" ); document.write( "common denominator
\n" ); document.write( "16000 = $\"8%2F12\"$ a - $\"3%2F12\"$ a
\n" ); document.write( "16000 = $\"5%2F12\"$ a
\n" ); document.write( "multiply both sides by $\"12%2F5\"$
\n" ); document.write( " $\"12%2F5\"$ *16000 = a
\n" ); document.write( "cancel the 5
\n" ); document.write( "12 * 3200 = a
\n" ); document.write( "a = 38,400 ft cruising altitude
\n" ); document.write( " \n" ); document.write( "

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