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
Rina8888 [55]
3 years ago
8

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th

e final exam. There are 100 points available for each score. However, the lab score is worth 21% of your total grade, each major test is worth 25%, and the final exam is worth 29%. Compute the weighted average for the following scores: 60 on the lab, 81 on the first major test, 69 on the second major test, and 79 on the final exam. Enter your answer as a whole number.
Mathematics
1 answer:
WARRIOR [948]3 years ago
4 0

Answer:

Weighted\ Average =  73

Step-by-step explanation:

Given

Lab = 21\%

Tests = 25\%

Exam = 29\%

Lab\ Score = 60

First\ Test = 81

Second\ Test = 69

Exam = 79

Required

The weighted average

To do this, we simply multiply each score by the corresponding worth.

i.e.

Weighted\ Average =  Lab\ worth * Lab\ score + Tests\ worth * Tests\ score.....

So, we have:

Weighted\ Average =  21\% * 60 + 25\% * 81 + 25\% * 69 + 29\% * 79

Using a calculator, we have:

Weighted\ Average =  73.01

Weighted\ Average =  73 --- approximated

You might be interested in
A wall with a height of 20 feet is braced with a support post that forms a 30 degree angle with the top of the wall. What is the
dexar [7]

The length of the support post is 40 ft.

<u>Solution:</u>

Given, the height of the wall is 20 ft; support post forms 30 degree

Refer the attached image

Let us name the triangle as ABC where AB is the wall (opposite side) of 20 ft and \angle A is 30 degree (\theta) and AC is the length of the post.

To find: The length of the post (AC)

we know the formula, sin\theta=\frac{opp}{hyp} (trigonometric formula)

On substituting the values we get,

\Rightarrow sin(30^{\circ})=\frac{20}{AC}

The value of sin 30 degree is 0.5

\Rightarrow 0.5=\frac{20}{AC}\rightarrow AC=\frac{20}{0.5}\rightarrow AC=40 ft

3 0
3 years ago
Please help me with this math problem. Thank you :)) brainliest if your correct!
Mumz [18]

Answer:

x + 2

Step-by-step explanation:

6 0
3 years ago
A truck travels on the highway at a speed of 72 miles per hour. What is the speed of the truck in feet per second
Dmitry_Shevchenko [17]
The answer is .02 per second
7 0
3 years ago
Read 2 more answers
Write the value of 4 in 305,444
BigorU [14]
Divide 305444 by 4

305444 / 4
76361

so
76361 times 4 is equal to 76361
3 0
3 years ago
Read 2 more answers
Which statement correctly compares the mean number of students for the data in the plots?
satela [25.4K]

Answer:

<em><u>"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."</u></em>

Step-by-step explanation:

We need to compute the mean for each.

<u>Poplar Middle School:</u>

Lets list the numbers

20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24

The average is sum of all divided by number of numbers, that will be:

435/20 = 21.75

<u>Oak Middle School:</u>

The numbers are:

20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29

The average is sum divided by number of numbers, that will be:

483/20 = 24.15

The difference in mean is:

24.15 - 21.75 = 2.4

We can say, that is about 2 more students in Oak Middle School, correct answer choice is "2nd answer choice" - <em><u>"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."</u></em>

7 0
3 years ago
Other questions:
  • Which line having the given slope and passing through the given point represents a direct variation?
    13·1 answer
  • Evaluate 10x2y–2 for x = –1 and y = –2.
    12·1 answer
  • How would you find the ordered pair for point H
    11·1 answer
  • Is 0.01 times 10 to the 26 power expressed right in scientific nototaion
    15·1 answer
  • What is the solution to the equation 3(2x+5) - 3x+4x7<br> x-1<br> x=4<br> x-5<br> 0 - 15
    8·2 answers
  • I don’t understand can you please explain how you got this answer my answer keep being low than these
    8·1 answer
  • A small university enrolls in-state and out-of-state students. The number of students enrolled in their most recent freshman cla
    9·1 answer
  • Evaluate 7x + 3y when x = 2 and y = 4​
    9·2 answers
  • SOMEONE PLEASE HELP I DIDNT PAY ATTENTION IN CLASS
    6·1 answer
  • I will get 10% off if and only if i spend at least $75
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!