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
Vika [28.1K]
3 years ago
15

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

nal exam. There are 100 points available for each score. However, the lab score is worth 25% of your total grade, each major test is worth 22:5%, and the nal exam is worth 30%. Compute the weighted average for the following scores: 92 on the lab, 81 on the rst major test, 93 on the second major test, and 85 on the nal exam. (
Mathematics
1 answer:
Mariana [72]3 years ago
3 0

Complete Question

In your biology class, your final  grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 25% of your total grade, each major test is worth 22:5%, and the final exam is worth 30%. Compute the weighted average for the following scores: 92 on the lab, 81 on the first major test, 93 on the second major test, and 85 on the final exam. (Enter your answer to one decimal place)

Answer:

The weighted average is  W = 87.65

Step-by-step explanation:

From the question we are told that

  The worth of the lab score is  25% of total grade

  The worth of each major  test is   22.5% of total grade

   The worth of final exam is  30% of total grade

The  score on lab is  92

The score on first major test 81

The score on second major test 93

 The score on final  exam is  85

Generally the weighted score is mathematically represented as

     W = 0.25 *  92 + 0.225* 81 + 0.225* 93 +0.30 * 85

=> W = 0.25 *  92 + 0.225* 81 + 0.225* 93 +0.30 * 85

=> W = 87.65

   

   

You might be interested in
Giving Brainliest If You answer this correct
Lubov Fominskaja [6]

Answer:

magnitude is always postive

so, it will be +2.5 , so C

8 0
2 years ago
Read 2 more answers
Calculate the average rate of change for the function f(x)=x^4+3x^3-5x^2+2x-2, from x=-1 to x=1
borishaifa [10]
\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------\\\\
f(x)= x^4+3x^3-5x^2+2x-2  \qquad 
\begin{cases}
x_1=-1\\
x_2=1
\end{cases}\implies \cfrac{f(1)-f(-1)}{1-(-1)}
\\\\\\
\cfrac{[1+3-5+2-2]~~-~~[1-3-5-2-2]}{1+1}\implies \cfrac{[-1]~~-~~[-11]}{2}
\\\\\\
\cfrac{-1+11}{2}\implies \cfrac{10}{2}\implies 5
6 0
3 years ago
Shelly can cut a lawn with a riding mower in 22 hours less time than it takes william to cut the lawn with a push mower. if they
umka2103 [35]
Let n be the amount of time it takes william to cut the lawn. Then Shelly takes
n-2 hours. So:
1/n+1/n-2=1/3
3(n-2)+3n=n²-2n
6n-6=n²-2n
n²-8n+6=0
Using the quadratic formula, we get a positive value of 7.1623 hrs as the amount of time william takes working alone, and 5.1623 as the amount  of time Shelly takes working alone
☺☺☺☺
7 0
3 years ago
Convert 1 2/5 x 2/3 into a mixed number
zavuch27 [327]
It simplifies to the proper fraction 14/15 so it cannot be a mix number

hope this helps !!
8 0
3 years ago
A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? Please show how
rjkz [21]

Answer:

$47.99

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is 30% of $56 <br><br> Please explain how you got the answer<br><br> Thanks!!
    12·1 answer
  • Jesse has 5 and 3/4 dozen eggs. How many eggs does Jesse have?
    10·2 answers
  • There are 30 students in Jenna's class. Jenna brought in 13 cupcakes. Which equation can be used to find the number of cupcakes
    7·2 answers
  • What number has a 9 with a value ten times as many as the 9 in 39,154
    15·1 answer
  • Find the greatest common factor of 7 and 7.
    15·1 answer
  • Which statement is true about the expression 7(2x 5)A. The expression has two factorsB. The expression has three factors.C. The
    12·1 answer
  • Can someone please help
    10·2 answers
  • Hypothesis Testing is the use of statistics to determine the probability that a given claim is true. In Part II of this project,
    5·1 answer
  • On a number​ line, suppose point E has a coordinate of 2​, and EG=6. What are the possible coordinates of point​ G?
    10·1 answer
  • Please hurry I have 2 more weeks of school I need to pass
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!