document.write( "Question 295061: The bowl contained 150 coins. if they were all pennies and nickels and their total value was $2.70, how many coins of each type were there? \n" ); document.write( "
Algebra.Com's Answer #212693 by ozybloke(7)![]() ![]() You can put this solution on YOUR website! The bowl contained 150 coins. if they were all pennies and nickels and their total value was $2.70, how many coins of each type were there?\r \n" ); document.write( "\n" ); document.write( "Let p = penny and n = nickels \n" ); document.write( "p + n = 150 \n" ); document.write( "p + 5n = 270 [pennies are 1cent and nickels are 5 cents] \n" ); document.write( "Use the elimination method \n" ); document.write( "Subtract equation two from equation one \n" ); document.write( "-4n = -120 \n" ); document.write( "Divide both sides by -4 \n" ); document.write( "n = 30 \n" ); document.write( "If there are 30 nickels, there must be 120 pennies.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |