document.write( "Question 617840: 450 coins that were pennies and nickels totaled $14.50, How many coins of each type were there? \n" ); document.write( "

Algebra.Com's Answer #388585 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+p+\"$ = number of pennies
\n" ); document.write( "Let $\"+n+\"$ = number of nickels
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+p+%2B+n+=+450+\"$
\n" ); document.write( "(2) $\"++1%2Ap+%2B+5%2An+=+1450+\"$ ( in cents)
\n" ); document.write( "----------------
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "(2) $\"++1%2Ap+%2B+5%2An+=+1450+\"$
\n" ); document.write( "(1) $\"+-p+-+n+=+-450+\"$
\n" ); document.write( " $\"+4n+=+1000+\"$
\n" ); document.write( " $\"+n+=+250+\"$
\n" ); document.write( "and, since
\n" ); document.write( "(1) $\"+p+%2B+n+=+450+\"$
\n" ); document.write( "(1) $\"+p+%2B+250+=+450+\"$
\n" ); document.write( "(1) $\"+p+=+200+\"$
\n" ); document.write( "200 pennies
\n" ); document.write( "250 nickels \n" ); document.write( "

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