.4(n+m) + .2t = G is the equation to find out your final grade if you know your test score
where
n = your first 9 weeks grade,
m = your second 9 weeks grade
t = test grade
G = final grade (or desired final grade)
t = (G - .4(n+m) ) / .2 is how to find out what test score you need
So, let's do an example!
Ex1.) You got a 79.2 your first 9 weeks, a 85.6 your second nine weeks, and a 50.7 on the test. You mom is yelling at you and you want to prove that you passed the class. Solve for your final grade.
So, first let's set up our variables
- n = 79.2
- m = 85.6
- t = 50.7
- G = ?
.4(n+m) + .2t = G
.4(79.2+85.6) + .2*50.7 = G
64.08 + 10.14 = G
74.22 = your final grade for the semester!!! Yaaaayyyy you hardly passed!
Now, let's try to get your desired grade instead as you prepare for your exam.
Ex2.) You got a 75.3 your first nine weeks and a 95.5 the second nice weeks (nice improvement!) You need at least a 90% to please your mom. Find out what you need on your test!
- n = 75.3
- m = 95.5
- t = ?
- G = 90.0
t = (G - .4(n+m)) / .2
t = (90.0 - .4(75.3+95.5)) / .2
t = (90 - 68.32) / .2
t = 21.68/.2
t = 108.4
Sorry friend, unless you have a ton of extra credit question on this text, you wont be getting that A on your report card. However, all you need is a 58.4 to get an 80%!
Sorry friend, unless you have a ton of extra credit question on this text, you wont be getting that A on your report card. However, all you need is a 58.4 to get an 80%!
So there you have it! A simple guide to finding out whether your grounded or good! I will have another post up in about an hour or 2....or 4 about my day: be warned, much depression ahead. For now, i hope this helped! Have an easier way? Post it in the comments! See you all in a bit!
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