How do you predict your grade in your class if you have an 80 percent in lecture and a 99.89 percent in lab?

Question

Our overall grade is 80% lecture and 20% lab. I have an 80 percent in lecture and a 99.89% in lab. What's my percent of a grade?

Answer 1

Uhm, So Lecture counts for 80% of mark and lab counts for 20% im guessing. In which case you scored 80% for lecture and 99.89% for lab. so you have to get your combined score out of 100%. So it is safe to say lecture is 8/10 of mark and lab is 2/10 so you multiply them by these fractiuons and add



(80 * 8/10) + (99.89 * 2/10) = 64 + 19.978 = 83.978% (I hope this is correct/ helps you)

Answer 2

80% = .80

20% = .20



.80 x 80 = 64

.20 x 99.89 = 19.978



64 + 19.1978 = 83.98



You have an 83.98 percent in the class.

Answer 3

80%*80%+20%*100%=84%

The .11% lost in lab is negligible.

Answer 4

congrats.You have scored almost 100%