Question 619056
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Hi,
If i have a total of 16 coins using only {{{highlight(16-x)}}}nickles and {{{highlight(x)}}}quarters to equal $3, how many quarters will i have?
Note:  CENTS makes sense
 25x + 5(16-x) = 300¢
      20x = 220
        x = 11, number of quarters.  There are 5 nickels

CHECKING our Answer***
25*11 + 5*5 = 300¢ or $3.00