Afriend tells you that she has been saving every 5- dollar and every 10 - dollar bill she has received for the last year . she now has 80 bills for a total of $550.00 . how many 5 - dollar bills and how many 10 - dollar bills does she have ? 1 . write an equation . 2 . use graphing , substitution or elimination to solve the system of equations . 3 . how many 5- dollar bills and how many 10 - dollar bills does she have ? 4 . explain why your answer is correct . 5 . explain why you chose the method .
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Afriend tells you that she has been saving every 5- dollar and every 10 - dollar bill she has receiv...
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