To learn how to set up and solve this sort of exercise, tryhere.

Then:

. . .coins:

. . . . .nickels: n

. . . . .pennies: 55 - n

. . .value:

. . . . .nickels: 5n

. . . . .pennies: ??

Complete the table. Sum the "value" expressions. Set the result equal to the given value. Solve the resulting equation for the variable. Back-solve for the required numbers.