document.write( "Question 559391: Okay I sort if need help on this word problem, thank you for helping.
\n" ); document.write( "(Word problem)
\n" ); document.write( "Bob took his quarters and dimes to the bank. He knew he had 500 coins. The teller counted his coins and said his deposit would be for $65.00. How many quarters did Bob deposit. \n" ); document.write( "

Algebra.Com's Answer #363401 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
Quarters---------x numbers
\n" ); document.write( "Dimes-----------y numbers
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\n" ); document.write( "x+y= 500 .............1
\n" ); document.write( "25x+10y =6500 .............2 (convert $65 into cents)
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -10
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-10x-10y=-5000
\n" ); document.write( "25x+10y =6500
\n" ); document.write( "Add the two equations
\n" ); document.write( "15 x = 1500
\n" ); document.write( "/ 15
\n" ); document.write( "x = 100
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 1 y = 500
\n" ); document.write( "100 + 1 y = 500
\n" ); document.write( " 1 y = 500 -100
\n" ); document.write( " 1 y = 400
\n" ); document.write( " y = 400 Quarters 100 numbers
\n" ); document.write( "Dimes 400 numbers
\n" ); document.write( "m.ananth@hotmail.ca
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