Question 858166
How can 80% of your grade be 84 with a final left that counts for 30%?  That's 110%.
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Let's assume you meant that 30% of the grade is your final.  Therefore, 70% is 84.
In this case,
84+84+84+84+84+84+84+x+x+x = 80*10 (3x because the final is weighted at 30%)
588 + 3x = 800
Subtract 588 from each side
3x = 212
Divide each side by 3
x = 70{{{2/3}}}
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If these are not the correct values, please repost.