document.write( "Question 203409: The ratio of domestic stamps to foreign stamps in John’s stamp collection is 3:1. If John sold thirty of his domestic stamps, the ratio of domestic stamps to foreign stamps would be 1:2. How many foreign stamps does John have in his collection? \n" ); document.write( "

Algebra.Com's Answer #153553 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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The ratio of domestic stamps to foreign stamps in John’s stamp collection is 3:1.
\n" ); document.write( "If John sold thirty of his domestic stamps, the ratio of domestic stamps to foreign stamps would be 1:2.
\n" ); document.write( "How many foreign stamps does John have in his collection?
\n" ); document.write( ":
\n" ); document.write( "\"The ratio of domestic stamps to foreign stamps in John’s stamp collection is 3:1.\"
\n" ); document.write( " $\"d%2Ff\"$ = $\"3%2F1\"$
\n" ); document.write( "d = 3f
\n" ); document.write( ":
\n" ); document.write( "\"If John sold thirty of his domestic stamps, the ratio of domestic stamps to foreign stamps would be 1:2.\"
\n" ); document.write( ":
\n" ); document.write( " $\"%28d-30%29%2Ff\"$ = $\"1%2F2\"$
\n" ); document.write( "f = 2(d-30)
\n" ); document.write( "f = 2d - 60
\n" ); document.write( "replace d with 3f
\n" ); document.write( "f = 2(3f) - 60
\n" ); document.write( "f = 6f - 60
\n" ); document.write( "60 = 6f - f
\n" ); document.write( "60 = 5f
\n" ); document.write( "f = $\"60%2F5\"$
\n" ); document.write( "f = 12 foreign stamps
\n" ); document.write( ";
\n" ); document.write( ":
\n" ); document.write( "Check solution
\n" ); document.write( "d = 3(12
\n" ); document.write( "d = 36 domestic stamps
\n" ); document.write( ":
\n" ); document.write( "Check in statement:
\n" ); document.write( "\" John sold thirty of his domestic stamps, the ratio of domestic stamps to foreign stamps would be 1:2.\"
\n" ); document.write( "36 - 30 = 6 stamps
\n" ); document.write( "6/12 = 1/2
\n" ); document.write( " \n" ); document.write( "

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