You have what's known as a weighted average. The 80 score is weighted more heavily than the 91 score, so the weighted average will be closer to 80 than a non-weighted average. 0.85 x 80 = 68 0.15 x 91 = 13.65 68 + 13.65 = 81.65
85% of your grade is a 68 and 15% is zero. 0.85 x 68 + 0.15 x 0 = 58, your final grade.
71 x 0.85 = 60.35 60 x 0.15 = 9.00 Your grade is 60.35 + 9.00 = 69.35.
7.5 is 15% of 50.
I am guessing it is water.
The final price of the item, including the discount and sales tax, is: $73.44
71.4 84*.85+0*.15=71.4
85% of your grade is a 68 and 15% is zero. 0.85 x 68 + 0.15 x 0 = 58, your final grade.
71 x 0.85 = 60.35 60 x 0.15 = 9.00 Your grade is 60.35 + 9.00 = 69.35.
You do not even need to get a 30% on the final. If you have a 100% in the class and get a 0% on the final, you willl still have an 85% in the class.
15 out of 20 would be grade of 75 percent.
7.5 is 15% of 50.
.5985 (final total after discount: 3.3915)
Exactly 53.33333333% (53.33) percent. As a grade, it is an F
I am guessing it is water.
To find the result when 320 is decreased by 15 percent, you first calculate 15 percent of 320 by multiplying 320 by 0.15, which equals 48. Then, subtract 48 from 320 to find the final result. The result of decreasing 320 by 15 percent is 272.
The final price of the item, including the discount and sales tax, is: $73.44
This is a savings of $10.50 so your final cost would be $59.50.