Internal resistance

A 1.2 m length of uniform resistance wire has resistance 4.8 Ω at room temperature. It is connected in series with a 3.0 Ω resistor and a battery of e.m.f. 9.0 V and internal resistance 0.60 Ω. Calculate the percentage of the total power supplied by the battery that is dissipated in the wire when the circuit is first switched on.