Math Guru's- please help

Tsunami · 08-07-2009, 06:26 AM

Man talk about Murphy's Law...

Took 2 finals today, thought I aced my Bio test, but came out with a B, but my overall avg for that class with the B is 98% so I should still have an A.

So just finished taking my Medical Terminology class online just past midnight and before tonight I never had problems with taking my tests online. Of course tonight the server started freezing and didn't take some of my answers. So I emailed the professor and I am waiting until tomorrow to see if I can or should retake the test. The final is just 25% of my grade though so I am trying to figure out how badly I have to score to maintain my A. But my math sucks ass and I just can't figure it out. (Plus I'm braindead right now, its 3:30 am)

Here is the breakdown:

20% of my grade I have 100 avg
30% of my grade I have 98
25% of my grade I have 97.2
25% of my final- TBD

How low do I have to score on the final to average out a 93%?

Thanks!

racedoll · 08-07-2009, 07:06 AM

I don't really consider myself a math guru, but I would guess you would need at least a 77% on your final to pass the class with a 93%.

karl_1052 · 08-07-2009, 07:25 AM

are they weighted equally?

EpyonXero · 08-07-2009, 10:19 AM

Quote:

Originally Posted by racedoll

I don't really consider myself a math guru, but I would guess you would need at least a 77% on your final to pass the class with a 93%.

Yep. You need at least a 77.2 to get 93%. I suggest you try to get better than 77.2

6doublefive321 · 08-07-2009, 10:48 AM

93=(0.20*100)+(0.30*98)+(0.25*97.2)+(0.25*x)
93=73.7+0.25*x
19.3=0.25*x
x=77.2

marko138 · 08-07-2009, 10:51 AM

D is for Degree.

Avatard · 08-07-2009, 02:13 PM

I'm not a math guru, but I'm a grammar nazi. You don't need a fucking apostrophe in "Gurus".

:-P

Particle Man · 08-07-2009, 02:43 PM

Quote:

Originally Posted by Avatard

I'm not a math guru, but I'm a grammar nazi. You don't need a fucking apostrophe in "Gurus".

:-P

Tsunami · 08-07-2009, 03:16 PM

Quote:

Originally Posted by Avatard

I'm not a math guru, but I'm a grammar nazi. You don't need a fucking apostrophe in "Gurus".

:-P

Tsunami · 08-07-2009, 03:18 PM

Quote:

Originally Posted by 6doublefive321

93=(0.20*100)+(0.30*98)+(0.25*97.2)+(0.25*x)
93=73.7+0.25*x
19.3=0.25*x
x=77.2

see thats what i couldn't figure out! I knew there was an algebraic equation involved but the percentages threw me off. I haven't done algebra since high school so i am way out of practice!

Thanks everyone!

08-07-2009, 06:26 AM	#1
Tsunami Pug Queen Join Date: Dec 2008 Location: Las Vegas, NV Moto: DR200, SV650 Posts: 2,486	Math Guru's- please help Man talk about Murphy's Law... Took 2 finals today, thought I aced my Bio test, but came out with a B, but my overall avg for that class with the B is 98% so I should still have an A. So just finished taking my Medical Terminology class online just past midnight and before tonight I never had problems with taking my tests online. Of course tonight the server started freezing and didn't take some of my answers. So I emailed the professor and I am waiting until tomorrow to see if I can or should retake the test. The final is just 25% of my grade though so I am trying to figure out how badly I have to score to maintain my A. But my math sucks ass and I just can't figure it out. (Plus I'm braindead right now, its 3:30 am) Here is the breakdown: 20% of my grade I have 100 avg 30% of my grade I have 98 25% of my grade I have 97.2 25% of my final- TBD How low do I have to score on the final to average out a 93%? Thanks!

08-07-2009, 07:25 AM	#3
karl_1052 sergeant hatred Join Date: Jul 2009 Location: Ottawa Moto: The bus Posts: 2,723	are they weighted equally? __________________ My wife was afraid of the dark...then she saw me naked and now she's afraid of the light.

08-07-2009, 10:48 AM	#5
6doublefive321 Resident Droog Join Date: Mar 2008 Location: Northern burbs, Atlanta Moto: 625 SMC, '08 Tuono R Posts: 471	93=(0.20100)+(0.3098)+(0.2597.2)+(0.25x) 93=73.7+0.25x 19.3=0.25x x=77.2 __________________ I'm sick and tired of being bored.

08-07-2009, 02:13 PM	#7
Avatard Crotch Rocket Curmudgeon Join Date: Nov 2008 Location: Here to integrity Moto: Li'l red baby Ninja Posts: 7,482	I'm not a math guru, but I'm a grammar nazi. You don't need a fucking apostrophe in "Gurus". :-P __________________ Insert free thought here.

08-07-2009, 07:06 AM	#2
racedoll AMA Supersport Join Date: Nov 2008 Moto: '04 Kawasaki ZX6RR Posts: 3,392	I don't really consider myself a math guru, but I would guess you would need at least a 77% on your final to pass the class with a 93%.