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
trapecia [35]
3 years ago
14

In a multiple choice examination of 20 questions, four marks are given for each correct answers and one mark is deducted for eac

h wrong answer. There is no penalty for not attempting a question. a candidate attempts "a" questions and get "c" correct. Write down, and simplify, an expression for the candidate's total mark in terms of "a" and "c".​
Mathematics
1 answer:
finlep [7]3 years ago
8 0

Answer:

Total Mark = 5c - a

Step-by-step explanation:

Total Mark = 4c - (a - c) = 5c - a

Marks for correct questions = 4c

Marks deducted for incorrect questions = a - c

You might be interested in
Help me ugent <br> 12 x 12 ^ 1
Naddika [18.5K]

Answer:

144 lol

Step-by-step explanation:

4 0
3 years ago
What is the common difference between the terms in the following sequence?
Ipatiy [6.2K]

Answer:

-6

Step-by-step explanation:

17-6=11

11-6=5

5-6=-1

-1-6=-7

6 0
2 years ago
Read 2 more answers
What is 25.5n - 3 = 5.5n + 10.
klemol [59]
N = 13/20 or 0.65

25.5n - 3 = 5.5n + 10

Add 3 to both sides of the equation.

25.5n = 5.5n + 13

Subtract 5.5n from both sides.

20n = 13

Divide both sides by 20.

n = 13/20 or 0.65
3 0
3 years ago
X+3y=3<br> 2x-4y=6<br><br> solve the equations
Gelneren [198K]
Subtract the second equation from double the first equation:

2x+6y-2x-(-4y)=0

10y=0

Therefore, y=0.  Substituting this into the first equation, we see that:

x+3(0)=3

x=3

Therefore, x=3.  The solution to this system is x=3, y=0, or (3, 0).
4 0
3 years ago
Read 2 more answers
Use the Rules of Special right triangles to find x and y 6) у 30° 4 [ Select] [ Select] y =​
storchak [24]

Answer:6.6 y

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Researchers wanted to know if there is a link between proximity to​ high-tension wires and the rate of leukemia in children. To
    14·1 answer
  • WILL GIVE BRAINLIEST!!!!!!!!!!!!! Which of the following shows the length of the third side, in inches, of the triangle below?
    8·2 answers
  • How do I write 14 ten thousands
    13·1 answer
  • A short quiz has two true-false questions and one multiple-choice question with four possible answers. A student guesses at each
    6·1 answer
  • Suppose the coefficient matrix of a system of linear equations has a pivot position in every row. Explain why the system is cons
    12·1 answer
  • To solve this system of equations using substitution, what could be substituted in place of y in the first equation?
    8·1 answer
  • In the triangles, GK PN and HG 2MP.
    5·1 answer
  • Study the graph,
    15·1 answer
  • Please help due today!!!!
    8·1 answer
  • On a map, the distance between Los Angeles, CA and San Francisco, CA is
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!