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)![]() ![]() ![]() You can put this solution on YOUR website! 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( "-------------- \n" ); document.write( "Quantity:: t + f = 45 stamps \n" ); document.write( "Value:: 25t + 50f = 1750 Php \n" ); document.write( "-------------------------------- \n" ); document.write( "Modify for elimination:: \n" ); document.write( "t + f = 45 \n" ); document.write( "t + 2f = 70 \n" ); document.write( "---- \n" ); document.write( "Subtract and solve for \"f\": \n" ); document.write( "f = 25 (# of Php 50 stamps) \n" ); document.write( "--- \n" ); document.write( "t = 45-25 = 20 (# of Php 25 stamps) \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |