1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sav [38]
2 years ago
13

A student earned grades of 84, 78, 84, and 72 out of 100 on her four regular tests. She scored 78% on the final exam and 86% on

her class projects. Her combined homework grade was 87 out of 100. The four regular tests count for 40% of the course grade, the final exam counts for 35%, the project counts for 10%, and homework counts for 15%. What is her weighted mean grade? Round to two decimal places.
Mathematics
1 answer:
adelina 88 [10]2 years ago
5 0

If the student received marks of 84, 78, 84, and 72 on her four normal tests, her weighted mean grade is 81.2 percent.

<h3>What is mean?</h3>

The mean is described as a single number that indicates either the closed value for each item in the collection of data or the mean value for the whole set of data.

On her four regular tests, a student had grades of 84, 78, 84, and 72 out of 100. She received 86 percent on her class projects and 78 percent on the final test.

You may compute the weighted mean as follows:

\rm W_m= 0.4 \times ( \frac{84+78+84+72}{4} )+0.3 \times 78 +0.1 \times 86 + 0.2 \times 87 \\\\ W_m=  81.2 \%

Hence, if the student had marks of 84, 78, 84, and 72 on her four normal tests, her weighted mean grade would be 81.2 percent.

To learn more about the mean refer;

brainly.com/question/22871228

#SPJ1

You might be interested in
Everything please helppppp!!
Soloha48 [4]

Answer:

Ok im, not 100% sure but the answer is for 1-10, 2-20, 3-40,  4-40

7 0
3 years ago
Read 2 more answers
If a triangle has three angles that add up to 180 degrees angle a is 20 angle b 50 how much is angle c?
Scorpion4ik [409]
50+20=70
180-70=110°
angle c= 110°
4 0
3 years ago
What is the greatest common factor of 49 and 84? a3 b4 c7 d9
Brilliant_brown [7]

Hi There!

Answer: c. 7

Why: 84 / 7 = 12 and 49 / 7 = 7

Hope This Helps :)

5 0
3 years ago
Somebody please answer quick
Papessa [141]
The third one is the answer
8 0
2 years ago
1- the width of a rectangular box is twice the height and depth is 5 feet. if the volume is 160 ft 3, find the dimensions of the
Lana71 [14]
1. H=4
W=8

2. L=27
W=21


1. 160÷5=32
1/2 of 8 is 4
8×4=32
I am default dancing right now


2. 2×6=12
96-12=84
84÷4=21
21+6=27 (the length)
21= (the Width)
3 0
3 years ago
Other questions:
  • 6 1/4 minus 3 5/8 please answer this please
    8·2 answers
  • The angles of a quadrilateral measure 80,100,80,100 in this order .What kind of quadrilateral has this shape. How do you know?
    14·1 answer
  • Find the value of x in the equation 2(x + 2) =6x.
    15·2 answers
  • If the APY of a savings account is 3.2%, and if the principal in the savings account was $2400 for an entire year, what will the
    9·2 answers
  • Anna gets $10 dollars everyday but on sunday on sunday she gets $17 dollars she wants to buy a dress that is 2,000 dollars if sh
    7·1 answer
  • 6th grade math, help pleasee:)
    10·2 answers
  • Find the missing lengths of the sides
    11·2 answers
  • The variable z is directly proportional to x, and inversely proportional to y. When x is 20 and y is 6, z has the value 66.66666
    8·1 answer
  • Choose the equation that shows a step in the process of completing the square on the given quadratic. y = x^2 + 8x – 3
    6·1 answer
  • Which statement correctly describes the end behavior of y = 3x8 + 5x2 +2x - 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!