document.write( "Question 660243: I need to write and solve an equation using the information below.\r
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document.write( "Lisa has 14 coins. She has some quarters, 5 nickels, and one dime more than she has nickels. How many of each type of coin does she have? How much money does she have? \n" );
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Algebra.Com's Answer #411094 by ReadingBoosters(3246) ![]() You can put this solution on YOUR website! x = quarters \n" ); document.write( "y = nickels \n" ); document.write( "z = dimes\r \n" ); document.write( "\n" ); document.write( "x + y + z = 14 \n" ); document.write( "y = 5 nickels \n" ); document.write( "z = y + 1\r \n" ); document.write( "\n" ); document.write( "Substitute the second equation into the third \n" ); document.write( "z = y + 1 = 5 + 1 = 6 dimes \n" ); document.write( "Substitute the second and third equations into the first \n" ); document.write( "x + 5 + 5 + 1 = 14 \n" ); document.write( "Isolate x \n" ); document.write( "x + 11 = 14 \n" ); document.write( "x + 11 - 11 = 14 - 11 \n" ); document.write( "x = 3 quarters \n" ); document.write( " |