Yes, you can put the assessments in a category, with the desired weightings, then for the course total use grade calculation
https://docs.moodle.org/403/en/Grade_calculation
give the asessment category and each of the grades an id, say A1, A2, Atotal for the category then
=if(min(a1,a2)<65,0,Atotal)
so if the minimum of assessments is under 65, return 0, otherwise return the calcuation for the assessment grade with weightings.
https://docs.moodle.org/403/en/Grade_calculation
give the asessment category and each of the grades an id, say A1, A2, Atotal for the category then
=if(min(a1,a2)<65,0,Atotal)
so if the minimum of assessments is under 65, return 0, otherwise return the calcuation for the assessment grade with weightings.