simple general math problem and i cant solve it!!!pathetic

[laFiera]

this is the breakdown of points for a class i'm taking!
6 programming assignments worth 100 points each count for 60% of the grade; i got a total of 595 points
one midterm that counts 20% worth 100 points, and i got an 89;
then the final worth 20% worth 100 points. What grade do i need in the final to keep the A?
my simple approach to solve was this...
60% of 600 points is 360; 324 points is 90%
20% of 100 points is 20; 18 points is a 90%
so my faulted logic says
357 + 17.8 + x = 360
but this equation is wrong, where the hell is my error???
gotta keep studying and can't figure this simple math problme out....

 

[GodBlessTheUSA]

6 programming assignments worth 100 points each count for 60% of the grade; i got a total of 595 points

59/60 (may be generous and give you all for that one.)

one midterm that counts 20% worth 100 points, and i got an 89;

18/20 (That's rounding up one point)

59+18=77

then the final worth 20% worth 100 points.


You have about 59+18 now, then 18 of 20 on final gives you 95 18 of 20 on a score of 100 is 90.....

You need a 90

 

[DuffmanOhYeah]

well, first of all, as near I can figure, either your or your professors percent to point scale is wrong. maybe straighten that out first.

 

[Joemonkey]

you need to figure out the percentage your scores were per section.... like your 595 out of 600 is 99.16%, then find 60% of that, which is 59.496... ok so that is for the programming assignments

now, midterm is 89 out of 100, which is 89%.... 20% of 89 is 17.8

so before the final you have 59.496+17.8 percentage points, or 77.296

now assuming an A is 90% or higher, you already have 77 points, so you only need 13 points... so 13 is what percentage of 20? 65%

so you need a 65% on the final to have an A

 

[Hoeboy]

So far you got 59.5% + 17.8% = 77.3%. You would need 12.7% of the final's 20% for an A-. In other words you need roughly 65 points on the final.

thank God that class isn't a math class eh?

 

[rgwalt]

You need a 63.5% or higher to get an A.

Same method as Joe.

Ryan

 

[laFiera]

thanks guys...
and i thought i was good in math..hell, i remember i was able to solve equations in my head years back....so much for that ability!
60 something sounds about good!
thanks again!