document.write( "Question 51876: the total value of the pennies and nickels was $14.50. hala counted the coins and found there was 450 in totalin all. how many of each type of coin did she have. \n" ); document.write( "
Algebra.Com's Answer #34611 by tutorcecilia(2152)\"\" \"About 
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Use the standard form of a line:
\n" ); document.write( "Ax+By=C
\n" ); document.write( "Let .01=value of the pennies
\n" ); document.write( "Let .05=value of the nickels
\n" ); document.write( ".
\n" ); document.write( "(.01)(x)+ (.05)(450-x)=14.50
\n" ); document.write( ".01x+22.50-.05x=14.50 [Solve for x]
\n" ); document.write( ".01x-.05x=-22.50+14.50
\n" ); document.write( "-.04x=-8
\n" ); document.write( "x=200 pennies
\n" ); document.write( "450-200=250 nickels
\n" ); document.write( ".
\n" ); document.write( "Check by plugging the values back into the original equation:
\n" ); document.write( "Ax+By=C
\n" ); document.write( "(.01)(200)+(.05)(250)=$14.50
\n" ); document.write( "14.50=14.50 [Checks out]\r
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