The final is worth 25% of the total grade--I am not a math wiz and need to get an idea how hard it will be for her to pass this class with at least a final 70%. Thanks!
2007-05-31 14:47:20 · 7 answers · asked by msbrneyes55 2 in Science & Mathematics ➔ Mathematics
multiply (0.67*0.75)+(X*0.25)=0.7
solve for X
0.5025+0.25X=0.7
0.25X=0.1975
divide each side by 0.25 to get X
x=.79 or 79%
2007-05-31 14:52:32 · answer #1 · answered by sic man 2 · 0⤊ 0⤋
What we have is 67% X 75% + E X 25% = F; where F is the final grade and E is the big exam grade for the term. 67% X 75% can be read she got a 67 on 3/4 of the final grade and an E on 1/4 of the final grade.
Since she needs a 70% to pass, we have .67 X .75 + E X .25 = .70; then E = [.70 - .67 X .75]/.25; you can do the arithmetic.
2007-05-31 14:59:26 · answer #2 · answered by oldprof 7 · 0⤊ 1⤋
She has to get at least a 79% on the final to pass the class with a 70%.
75%*67%+25%(Final)=70%
Final=(70%-75%*67%)/25%
Final=79%
2007-05-31 14:58:55 · answer #3 · answered by megaz 1 · 0⤊ 0⤋
Maam,
Your daughter needs to get at least 79% of her final exam to have a 70% rating in her class.
2007-05-31 14:53:47 · answer #4 · answered by Lex 2 · 0⤊ 0⤋
79% will give her a 70% total
(just for consolation - a 77% would give her a 69.5% and would likely round up to 70%)
good luck!
2007-05-31 14:51:33 · answer #5 · answered by yerffej89 3 · 0⤊ 0⤋
you basically ought to get 2% on the main suitable examination. notwithstanding in case you get a nil on the main suitable examination, your grade interior the class is a 40 9.6%. i do no longer think of try to be too apprehensive :-) good luck!
2016-11-03 06:31:13 · answer #6 · answered by craze 4 · 0⤊ 0⤋
your daughter must have a 73% on her final in older to the pass class
2007-05-31 14:57:40 · answer #7 · answered by Timolin 5 · 0⤊ 2⤋