document.write( "Question 640107: can you help me solve this question (how many different integers can be expressed as the sum of three different numbers in the set {1,2,3,4,5,6,7} \n" ); document.write( "

Algebra.Com's Answer #403026 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "There are 7 ways to choose the first number. Then for each of those ways to choose the first number there are 6 ways to choose the second number. Then for each of those 42 ways to pick the first two numbers, there are 5 ways to pick the third number...\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "

\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "

$\"The$

\n" ); document.write( " \n" ); document.write( "

\n" );