SOLUTION: jess got 56% in math first term, 89 % seconde term and 80% third term if the first two terms count for 20% each and third term for 60% percent what is her final mark???

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Question 624304: jess got 56% in math first term, 89 % seconde term and 80% third term if the first two terms count for 20% each and third term for 60% percent what is her final mark???
Answer by ankor@dixie-net.com(15746) About Me  (Show Source):
You can put this solution on YOUR website!
jess got 56% in math first term, 89 % second term and 80% third term if the first two terms count for 20% each and third term for 60% percent what is her final mark???
:
We can treat this as 10 grades
f.m. = %282%2856%29+%2B+2%2889%29+%2B+6%2880%29%29%2F10
:
f.m. = %28112%2B178%2B480%29%2F10
:
f.m. = 770%2F10
:
f.m. = 77%