document.write( "Question 1205084: Jill has $1275.00 in her savings account. When she opened her account, she had $300.Every week she deposited $75.00. How many weeks did it take to earn $1275.00?
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Algebra.Com's Answer #841713 by ikleyn(52864) You can put this solution on YOUR website! . \n" ); document.write( "Jill has $1275.00 in her savings account. When she opened her account, she had $300. \n" ); document.write( "Every week she deposited $75.00. How many weeks did it take to earn $1275.00? \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "As I see from your post, this bank does not give an interest, at all (zero interest rate).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "So, the money grows only because she adds her saving each week.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "At such conditions, the term \"to earn\" is not applicable, at all.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The term to use instead is \"to save\".\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "You may write this equation\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " 1275 = 300 + 75*w\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "and solve it for w, the number of week.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "You will get then w =\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==================\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Memorize that the term \"account earns\" relates only to an interest.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It does not include the initial/original principal and/or the deposits.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |