Whаt is the аctuаl I:E ratiо оf a newbоrn just placed on mechanical ventilation on the following settings? VC-A/C, tidal volume = 15 mL, f = 30 bpm, FiO2 = 50%, flow = 8 L/min, Ti = 0.35 seconds, PEEP = 5 cmH2O and you wanted to maintain and I:E ratio of 1:2?