Question 12493
Let number of nickels be "x".
Then number of quarters is "x-11"
And number of dimes is "6(x-11)" = "6x-66"
Value of nickels is (5)x cents
Value of quarters is (25)(x-11)= 25x-275 cents
And Value of dimes is (10)(6x-11)= 60x-110 cents
EQUATION:
Value of nickels + Value of dimes + Value of quarters = 1765 cents
      5x + 25x-275 + 60x-110 = 1765
                    90 x = 2150
                       x = 23.89... (number of nickels??????)
Answer doesn't nake sense since you can't have 23.89 nickels.

Cheers,
Stan H.