document.write( "Question 179953: A child's coin bank contains $2.58 in pennies and nickels. If the number of pennies is 36 less than 2 times the number of nickels, how many pennies are in the bank? \n" ); document.write( "
Algebra.Com's Answer #134845 by Mathtut(3670)\"\" \"About 
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A child's coin bank contains $2.58 in pennies and nickels. If the number of pennies is 36 less than 2 times the number of nickels, how many pennies are in the bank?
\n" ); document.write( ":lets call the number of pennies and nickels ,p and n respectively
\n" ); document.write( ":
\n" ); document.write( ".01p+.05n=2.58.........eq 1
\n" ); document.write( "p=2n-36................eq 2
\n" ); document.write( ":
\n" ); document.write( "take p's value of 2n-36 in eq 2 and plug it into eq 1
\n" ); document.write( ":
\n" ); document.write( ".01(2n-36)+.05n=2.58
\n" ); document.write( ":
\n" ); document.write( ".02n-.36+.05n=2.58
\n" ); document.write( ":
\n" ); document.write( ".07n=2.94
\n" ); document.write( ":
\n" ); document.write( "\"highlight%28n=42%29\"number of nickels
\n" ); document.write( ":
\n" ); document.write( "\"highlight%28p=2%2842%29-36=48%29\"number of pennies \n" ); document.write( "
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