document.write( "Question 996733: Donna bought Php 25 stamps and Php 50 stamps amounting to Php 1,750. If she has a total of 45 stamps, how many of each kind of stamp did she buy? \n" ); document.write( "
Algebra.Com's Answer #615046 by stanbon(75887)\"\" \"About 
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Donna bought Php 25 stamps and Php 50 stamps amounting to Php 1,750. If she has a total of 45 stamps, how many of each kind of stamp did she buy?
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\n" ); document.write( "Quantity:: t + f = 45 stamps
\n" ); document.write( "Value:: 25t + 50f = 1750 Php
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\n" ); document.write( "Modify for elimination::
\n" ); document.write( "t + f = 45
\n" ); document.write( "t + 2f = 70
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\n" ); document.write( "Subtract and solve for \"f\":
\n" ); document.write( "f = 25 (# of Php 50 stamps)
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\n" ); document.write( "t = 45-25 = 20 (# of Php 25 stamps)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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