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
cupoosta [38]
3 years ago
14

There were 120 multiple choice questions.a candidate was given 1mark for each correct answercand penalised ¼ mark for every wron

g answer.the candidate answered all the questions and scored 80marks.find the number of correct answers given by the candidate.
Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0
120-1/4x=80

-1/4x=-40

1/4x=40

x= 10

120-1/4(10)=80

80=80

80 correct answers 
You might be interested in
What can I add to get -6?
krok68 [10]
So what you would need to add to get -6 is -5-1 then your answer would be -6 hope this helps!
3 0
2 years ago
Read 2 more answers
By using the grouping method to factor this polynomial completely <img src="https://tex.z-dn.net/?f=3x%5E3%2B12%5E2%2B2x%2B8" id
Schach [20]

Answer:3x^2+2x+152

Step-by-step explanation:

6 0
3 years ago
Simplify the expression: 5(–4 + 3g)
MaRussiya [10]

Answer:

-20 + 15g

Step-by-step explanation:

5 multiplied by -4 is -20

5 multiplied by 3g is 15 g.

because these two variables do not both have a g with them, this is the most they can be simplified. hope this helps!

4 0
3 years ago
Read 2 more answers
9. Find the dimensions of the<br>4 triangular faces of the pyramid.<br>(Height is 55.5 ft)<br>​
Minchanka [31]

Answer:

Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\

Step-by-step explanation:

We have a 4-sided triangular pyramid , where

Q=\frac{\pi}{2}*H\\P=Q*\sqrt{\frac{1}{2}+\frac{4}{\pi ^{2}}}\\Q=\frac{\pi}{2}*55.5ft=87.18ft\\P=87.18ft*\sqrt{\frac{1}{2}+\frac{16}{\pi ^{2}}}=87.18*0.9515=82.95ft\\

3 0
3 years ago
Julio caught 3 fish weighing a total of 23 1/2 pounds. One fish weighed 9 5/8 pounds and another weighed 6 1/4 pounds. How much
Airida [17]
So we need to know what 23 1/2 + 9 5/8 + 6 1/4 is.
first, we need to make them into equivalent fraction. 
so...
23 1/2 can be 23 4/8
9 5/8 and
6 1/4 can be 6 2/8
let's add the whole numbers.
23 + 9 + 6 = 38
4/8 + 5/8 + 2/8 = 11/8 = 1 3/8
so 38 + 1 3/8 is 39 3/8
the answer is 39 3/8 pounds

4 0
3 years ago
Read 2 more answers
Other questions:
  • Who can get me the galaxy skin for free?
    5·1 answer
  • true or false the area of a regular hexagon can be found by breaking the hexagon into 6 congruent triangles and then taking the
    7·2 answers
  • Write each decimal as a percent round to the nearest tenth of a percent if needed
    7·1 answer
  • The letters c, a, t are placed in a bag. Each letter is randomly drawn from the bag and not replaced. Complete the table to show
    6·1 answer
  • Which fraction has the same value as 0.3?​
    13·2 answers
  • To isolate the variable in the equation-3x-9 -27, the first step is to add 9 to both sides. This gives you 3x -18. What is the n
    10·2 answers
  • What is 6(c-4) &gt; 18
    8·2 answers
  • Writing equations in slope intercept form
    10·2 answers
  • A 4 1/2 pound bag of raisins must be divided equally into 1/4 pound portions for a cooking class. Enter the number of 1/4 pound
    14·1 answer
  • (03.02 MC)The table shows the battery life of four different mobile phones:
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!