document.write( "Question 201797: Jeb has 25 coins.They are all quarters and nickels. He has a total of $2.85. How many quarters and nickels does he have? construct an algebraic equation, solve the variable, and answer the question. You must solve the problem using algebra \n" ); document.write( "
Algebra.Com's Answer #152067 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Jeb has 25 coins.They are all quarters and nickels. He has a total of $2.85. How many quarters and nickels does he have? \n" ); document.write( "------------ \n" ); document.write( "n + q = 25 --> q = 25-n \n" ); document.write( "5n + 25q = 285 \n" ); document.write( "-------------- \n" ); document.write( "Sub for q in 2nd eqn \n" ); document.write( "5n + 25(25-n) = 285 \n" ); document.write( "n + 5(25-n) = 57 \n" ); document.write( "n + 125 - 5n = 57 \n" ); document.write( "-4n = -68 \n" ); document.write( "n = 17 nickels \n" ); document.write( "q = 8 quarters \n" ); document.write( " |