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
steposvetlana [31]
3 years ago
12

En un programa de televisión se hacen 30 preguntas. Por cada respuesta correcta se suman 8 puntos, por cada respuesta errónea se

restan 5 puntos y por aquellas preguntas que no se contesten no se suman ni se restan puntos. Si un participantes obtuvo 13 puntos, ¿Cuantas respuestas erróneas pudo tener?
Mathematics
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

7 wrong answers.

Step-by-step explanation:

We know that when you answer a question well, you earn 8 points and a bad one loses 5 points, this means that when you answer 1 good and 1 bad, there is a total of 3 points (8-5).

This means that when answering 5 good and 5 bad, in total it would be 3 * 5 points, that is to say 15 points, that is, it goes through 2 points. To subtract 2 points, you would have to answer 1 good and 2 bad, (8 - 2 * 5), which turns out to be -2 points.

In total there would be 6 questions right and 7 questions wrong, like this:

8 * 6 + 5 * 7 = 13

13 points, in 13 questions (6 correct + 7 incorrect)

The rest of the questions were not answered so that the score does not go up or down.

Which means you got 7 wrong answers.

You might be interested in
One angle is its own supplement.<br> What size is this angle?
givi [52]

Answer:When an angle is its own supplement, that means that the angle, plus itself, will equal 180 degrees.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
7:11 and 21:33 yes or no
grandymaker [24]
Yes!! They both are equivalent.....
7 0
3 years ago
a large aquarium 18 inches deep holds 30 gallons of water. a small aquarium with the same shape holds 20 gallons of water. how d
Alex17521 [72]
20 so -10 from 30 so the 18 is -10 right hope dis helped

8 0
3 years ago
Below is a plot of land divided into 4 sections for a vegetable garden.
alexandr1967 [171]

Answer:

104

Step-by-step explanation:

did the test yourself(sorry for no proof)

5 0
2 years ago
On the first day in each month, Enid deposited $4 into her bank account and Jim deposited $3 into his. They opened these account
ohaa [14]

Answer:

The amount of money in Enid bank account can be written as a linear equation.

Ye = Xe + $4*m

where Ye is the money that Enid has in her account, m is the number of months that have passed since she opened it, and Xe is the initial deposit.

For Jim, the equation is similar:

Yj = Xj + $3*m

where Yj and Xj are similar as above.

Between May 15 and December 31 of the same year, we have 7 months (where i am counting December because the deposit is made in the first day of the month).

Then we have that:

Ye = $72 = Xe + $4*7 = Xe + $28

Xe = $72 - $28 = $44

So in May 15, Enid deposited $44.

For Jim we have:

Yj = $72 = Xj + $3*7 = Xj + $21

Xj = $72 - $21 = $51

So in May 15, Jim deposited $51.

5 0
2 years ago
Other questions:
  • Read the proof. Given: m∠H = 30°, m∠J = 50°, m∠P = 50°, m∠N = 100° Prove: △HKJ ~ △LNP Statement Reason 1. m∠H = 30°, m∠J = 50°,
    9·1 answer
  • 0.4859 as a fraction
    13·2 answers
  • Wha it is 2,200 divided by 30 and 2,300 divided by 30
    7·2 answers
  • 2 Points
    15·2 answers
  • a baseball team played 154 games last season the had 35 fewer losses than wins how many games did the team win and how many did
    10·1 answer
  • A recent study claimed that in any given month for every 5 text messages a boy sent or received, a girl sent or received 7 text
    5·1 answer
  • Cameron eats 1/4 of a pie. Amy eats 1/2 of what is left. How much of the pie is remaining
    6·1 answer
  • ........................................ ....,....<br><br><br><br>.....
    12·2 answers
  • A stopwatch is generally a more precise tool for measuring a length of time
    14·2 answers
  • Find the value of each variables​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!