So Exams 1 and 2 are worth 30% of grade each (60% total) and final worth 40%. So far I've gotten 87.5% and 79.3%. Is it possible to get an A- (90%) in the class if I get an A on the final?
2007-12-13 06:45:18 · 17 answers · asked by mmd443 2 in Science & Mathematics ➔ Mathematics
I think it's possible.
2007-12-13 06:48:13 · answer #1 · answered by WT 4 · 0⤊ 3⤋
Exam 1 = 87.5%
Exam 2 = 79.3%
Exam 3 = _____
Add them all together, divide by 3, that gives you the average.
But even if you make 100% you'll only make an 88.9% average, which isn't quite an A-, ask your teacher if there's any extra credit you can do. But then.. that's average, so I'm not completely sure.
Hmm...
Exam 1 = 87.5 x .30 = 26.25
Exam 2 = 79.3 x .30 = 23.79
Exam 3 = 100 x .40 = 40
Total = 90.04 %
( I don't know if it's right or not, but according to that, if you make 100% then you can, so it looks good, right??)
2007-12-13 15:06:49 · answer #2 · answered by Auge 2 · 0⤊ 0⤋
Okay add the 3 grades total so 87.5 +79.3 + lets say 100
add them up then divide by the amount of test.. so 266 divided by 3 = 88.9 B +
2007-12-13 14:49:50 · answer #3 · answered by sstew15 3 · 1⤊ 0⤋
heres the eqn.
(87.5)(0.3) + (79.3)(0.3) + X(0.4) = Y
in this case y is equal to the final grade you want to make. so if you want a 90%, put 90 into y and solve for x. You will need a 100% on your final.
2007-12-13 14:54:28 · answer #4 · answered by muwade26 2 · 0⤊ 1⤋
yes
right now out of 100% possible, you have
87.5 * .30 = 26.25
79.3 * .30 = 23.79
total equals 60.04
so you need 40 more points which means 100% on the 40% final
2007-12-13 14:51:05 · answer #5 · answered by trent 3 · 1⤊ 0⤋
Yes... if you got a 100% on your test... your final grade would be 90.04
I guess I should give you the math ...
87.5 x 30%= 26.25
79.3 x 30% = 23.79
100 x 40% = 40 (If you could get 100)
Total grade = 90.04
EDIT- OMG I'm so sorry... really bad math ... Im so embarrassed ... yes you could make it... corrections above !
2007-12-13 14:49:44 · answer #6 · answered by Anonymous · 0⤊ 1⤋
Yes it is possible to get an -A.
.875 x .3 + .793 x .3 + X x .4 = 90
.263 + .238 + X x .4 = .90
X x .4 = .90 - .501
X = .399 / .4
x = .9975
In other words, you need to ace your last test to get an -A for the class.
2007-12-13 14:57:05 · answer #7 · answered by Benjamin Goodman 2 · 0⤊ 0⤋
Let's calculate:
.3 (87.5) + .3 (79.3) + .4 x = 90
24.25 + 23.79 + .4x = 90
.4x = 90 - 48.04
.4x = 40.96
x = 102.4
This shows you would have to get a 102.4 % on the final to get a 90 average.
Better start looking for extra credit projects.
2007-12-13 14:47:44 · answer #8 · answered by ignoramus 7 · 0⤊ 3⤋
you can get an A if you make a 100 on the test... that will give you a 90.4 for a final grade
87.4 *.3 = 26.25
79.3*.3 = 23.79
add those together for a 50.4
You can get 40 more points from the exam giving you a 90.4
Good luck
2007-12-13 14:50:00 · answer #9 · answered by brotherj81 3 · 0⤊ 2⤋
You would have to get a 100 to get an exact 90. In fact a 99 you are still a B.
2007-12-13 14:50:10 · answer #10 · answered by JK 2 · 0⤊ 2⤋
If you get 100% on the last one.
2007-12-13 14:52:22 · answer #11 · answered by Anonymous · 1⤊ 1⤋