document.write( "Question 1111274: There is a problem I don't understand.\r
\n" ); document.write( "\n" ); document.write( "example:\r
\n" ); document.write( "\n" ); document.write( "The first year the state of Pennsylvania issued railroad memorial license plates, the plates had a picture of a stream engine followed by four digits. Assuming that repetitions are allowed, how many railroad memorial plates could be issued.\r
\n" ); document.write( "\n" ); document.write( "the solution has four \"10s\" that equal 10,000and I don't understand how they got that answer. how did they come up with the number 10. I just need someone to shed some light on this for me.\r
\n" ); document.write( "\n" ); document.write( "Tia
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #726270 by amalm06(224)\"\" \"About 
You can put this solution on YOUR website!
There are 4 independent events and each event can occur in 10 possible ways. Since the events are independent, you multiply them to find the total number of possible combinations. \r
\n" ); document.write( "\n" ); document.write( "You can pick the first digit 10 different ways, the 2nd digit 10 different ways, the third digit 10 different ways, and the 4th digit 10 different ways.
\n" ); document.write( "So there are 10*10*10*10=10000 possible ways to pick the digits (Answer).
\n" ); document.write( "
\n" );