document.write( "Question 37833: Can someone answer this and explain how it is done? Thanks\r
\n" ); document.write( "\n" ); document.write( "Joe remembered that the three digits in his locker combination were 3,5,and 7, but he forgot the order of the numbers. What is the maximum number of combinations he must check in order to open his lock? What are they?
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Algebra.Com's Answer #23332 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
first digit: can be any one of the 3. So 3 options
\n" ); document.write( "second digit: once the first is chosen, there are 2 options left. So this creates 3*2 options
\n" ); document.write( "third digit: only one number left, so we have 3*2*1 options --> 6\r
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\n" ); document.write( "\n" ); document.write( "these:
\n" ); document.write( "357
\n" ); document.write( "375
\n" ); document.write( "537
\n" ); document.write( "573
\n" ); document.write( "735
\n" ); document.write( "753\r
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\n" ); document.write( "\n" ); document.write( "jon
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