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
hammer [34]
3 years ago
10

A professor grades students on four tests, a term paper, and a final examination. Each test counts as 15% of the course grade. T

he term paper counts as 20% of the course grade. The final examination counts as 20% of the course grade. Alan has test scores of
92, 78, 82, and 90.
Alan received an 80 on his term paper. His final examination score was 86. Use the weighted mean formula to find Alan's average for the course. (Round your answer to one decimal place.)

Mathematics
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

The Alans's average for the course is 84.5

Step-by-step explanation:

We are given

There are 4 tests, A Term paper and a Final examination.

Score = 92, 78, 82, 90.

Term paper score = 80

Final examination score = 86

Weighted mean = ∑ w.f/∑w

     also the sum of all the weights is 100% = 1

weighted mean = 15%*92 + 15%*78+15%*82+15%*90+20%*80+20%*86/1

                         = 51.3 + 33.2

                         =  84.5

Therefore the Alans's average for the course is 84.5

You might be interested in
kaya has $25 left over after the football game she spent $17 for her ticket. She then bought a hat for $11 how much money did ka
shepuryov [24]
Kaya brought $53 to the football game
7 0
3 years ago
Help please!!!!!!!!!!!!!
Zinaida [17]

Answer:

20

Step-by-step explanation:

First you need to figure out what they multiplied 6 by to get 60, to do that reverse the operation to make it 60÷6=10. Then you multiply the 10 by the 2 to get 20.

5 0
3 years ago
Read 2 more answers
Which system of linear inequalities is represented by the graph?
azamat

Answer:

The system of linear inequalities represented by the graph is:

y > (2/3) x + 3 and y <= - (1/3) x + 2

Step-by-step explanation:

In the graph we can see the region on and below the red line, and above the black dashed line.

1) The red line goes through the points:

P1=(0,2)=(x1,y1)→x1=0, y1=2

P2=(3,1)=(x2,y2)→x2=3, y2=1

The slope of this line is:

s=(y2-y1)/(x2-x1)

Replacing the known values:

s=(1-2)/(3-0)

s=(-1)/(3)

s=-(1/3)

The equation of the red line is:

y-y1=s(x-x1)

y-2=-(1/3)(x-0)

y-2=-(1/3)x

y-2+2=-(1/3)x+2

y=-(1/3)x+2

The area on and below the red line is: y<=-(1/3)x+2

2) The black dashed line goes through the points:

P1=(-3,1)=(x1,y1)→x1=-3, y1=1

P2=(0,3)=(x2,y2)→x2=0, y2=3

The slope of this line is:

s=(y2-y1)/(x2-x1)

Replacing the known values:

s=(3-1)/(0-(-3))

s=(2)/(0+3)

s=(2)/(3)

s=(2/3)

The equation of the red line is:

y-y2=s(x-x2)

y-3=(2/3)(x-0)

y-3=(2/3)x

y-3+3=(2/3)x+3

y=(2/3)x+3

The area above the black dashed line is: y>(2/3)x+3

Then, the system of linear inequalities represented by the graph is:

y>(2/3)x+3 and y<=-(1/3)x+2

6 0
3 years ago
Read 2 more answers
Original: $30.59<br> Discount:25%<br> New: ?
Scorpion4ik [409]

<em>Hello!</em>

The new value is $ 22,9425 or just $ 23 in a more simplified size.

We need to calculate 25% of 30.59.

We will do this by turning 25 into tenths:

  • 0,25 × 30,59
  • = 7,6475

Now, we subtract that from 30,59.

30,59 - 7,6475

= 22,9425

So, the new value is $ 22,9425 or just $ 23 in a more simplified size.

_______________

<em>Att. Isaiasdesign03</em>

<em>Moderator in Brainly BR</em>

<em>Sorry my English, I'm Brazilian. </em>☺

3 0
3 years ago
40 POINTS! + BRAINLIEST!
RideAnS [48]
36/6 = 6
so 
x = 42/6 = 7

answer
x = 7 cm
8 0
3 years ago
Read 2 more answers
Other questions:
  • (-4) x[15+ (-3)] = (-4) 15+_____________<br>a)4×(-3)<br>b)15×(-3)<br>c) (-4)×(-3)<br>d)4×3​
    8·1 answer
  • What is 165% written as a decimal and fraction
    11·2 answers
  • What is 285.39154 to the nearest hundredth
    9·2 answers
  • Pencils are sold in packages of 5. Explain why you need 6 packages in order to have enough for 27 students
    15·2 answers
  • What is the place value of the diget 8 in the decimal number 0.837
    11·2 answers
  • Find the value of x if 212x5 is a multiple of 3 and 11
    9·1 answer
  • Please answer this question!! 40 points and brainliest!
    12·1 answer
  • Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), if possible. Slope: und
    5·1 answer
  • Which function has a domain of all real numbers
    9·2 answers
  • Which pair of angles are supplementary?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!