LHR 100 minutes transit from terminal 3 to terminal 5

Hi,
Arriving 8:55am on American from Munich in terminal 3 and departing for Boston at 10:35am on BA terminal 5. Flying economy with luggage (I am Qatar Airways Gold but I dont think that will give me priority luggage handling with AA).

Do I (and my luggage) have enough time in that 100 minute transit?

Thank you!