document.write( "Question 10956: A collection of 5 cents and 25 cents total $2.25. The total no. of coins is 25. How many of each kind are there? \n" ); document.write( "
Algebra.Com's Answer #5786 by askmemath(368)![]() ![]() ![]() You can put this solution on YOUR website! Let there be X 5cent coins and Y 25cent coins \n" ); document.write( "Now we know X+Y = 25\r \n" ); document.write( "\n" ); document.write( "and 5X +25Y = 225 \n" ); document.write( "Dividing by 5 throughout\r \n" ); document.write( "\n" ); document.write( "X+5Y=45 \n" ); document.write( "X+Y=25 \n" ); document.write( "Subtracting we get \n" ); document.write( "4Y=20 \n" ); document.write( "Y=5 \n" ); document.write( "which means X=20\r \n" ); document.write( "\n" ); document.write( "Check: \n" ); document.write( "20x5 + 25x5 \n" ); document.write( "100+225 = 225 = $2.25 Yay!!! \n" ); document.write( " |