document.write( "Question 1061226: When Jai emptied her piggy bank, there were nickels, dimes, and quarters. There were 2 times as many dimes as nickels, and 10 more quarters than nickels. If the total amount of money was 7.50, how many coins did she have? \n" ); document.write( "
Algebra.Com's Answer #676090 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! VARIABLES \n" ); document.write( "n nickels \n" ); document.write( "d dimes \n" ); document.write( "q quarters\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "EQUATIONS FROM DESCRIPTION \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "SIMPLIFY OR IMPROVE THE SYSTEM \n" ); document.write( " \n" ); document.write( "Actual form of each equation may be chosen differently, but system must still be equivalent.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "SUGGESTION: \n" ); document.write( "substitute for d in the last equation of that simplified system, and solve the resulting system in n and q. \n" ); document.write( " |