document.write( "Question 608538: A collection of dimes and nickels is worth $3.75. If there are 55 coins in the collection, how many of each are there? Create a system of equations representing this situation and solve it to determine your answer. \n" ); document.write( "
Algebra.Com's Answer #383274 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A collection of dimes and nickels is worth $3.75. If there are 55 coins in the collection, how many of each are there? Create a system of equations representing this situation and solve it to determine your answer. \n" ); document.write( "------ \n" ); document.write( "Quantity Eq.: d + n = 55 coins \n" ); document.write( "Value Equat.:10d+5n = 375 cents \n" ); document.write( "------------------------------------ \n" ); document.write( "Multiply thru the 1st Eq. by 5: \n" ); document.write( "5d + 5n = 5*55 \n" ); document.write( "10d+ 5n = 375 \n" ); document.write( "---- \n" ); document.write( "Subtract and solve for \"d\": \n" ); document.write( "5d = 100 \n" ); document.write( "d = 20 (# of dimes) \n" ); document.write( "--- \n" ); document.write( "Solve for \"n\": \n" ); document.write( "d + n = 55 \n" ); document.write( "20 + n = 55 \n" ); document.write( "n = 35 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |