document.write( "Question 424032: Jeffery has a piggy bank with $28.00 in dimes and quarters. If there are 205 coins in total, how many of each coin does he have? \n" ); document.write( "

Algebra.Com's Answer #295703 by stanbon(75887) $\"\"$ $\"About$

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Jeffery has a piggy bank with $28.00 in dimes and quarters. If there are 205 coins in total, how many of each coin does he have?
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\n" ); document.write( "Equations:
\n" ); document.write( "Quantity Eq.::: d + q = 205 coins
\n" ); document.write( "Value Eq.:::: 10d + 25q = 2800 cents
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\n" ); document.write( "Multiply thru the Quantity Eq. by 10 to get:
\n" ); document.write( "10d + 10q = 2050
\n" ); document.write( "10d + 25q = 2800
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\n" ); document.write( "Subtract and solve for \"q\":
\n" ); document.write( "15q = 750
\n" ); document.write( "q = 50 (# of quarters)
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\n" ); document.write( "Solve for \"d\":
\n" ); document.write( "d + q = 205
\n" ); document.write( "d + 50 = 205
\n" ); document.write( "d = 155 (# of dimes)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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