document.write( "Question 354893: a collection of 36 dimes and quarters is worth 4 dollars and 80 cents; how many dimes are there?....please I would like help over this I have a test tommorow and cant fail it or I am off the baseball team...please help \n" ); document.write( "
Algebra.Com's Answer #253526 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! \"36 dimes and quarters\" ___ d + q = 36 ___ 10d + 10q = 360 (A)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\"worth 4 dollars and 80 cents\" ___ 10d + 25q = 480 (B)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtracting equation (A) from equation (B) to eliminate \"d\" ___ 15q = 120 ___ q = 8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ d + (8) = 36 ___ d = 28 \n" ); document.write( " |