Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- and y-variables. Solve the system by the elimination method. Be sure to state your final answer in terms of the original question.

A jar contains 50 nickels and dimes worth $4.30. How many of each kind of coin are in the jar?

x = _________________nickels

y = _________________dimes