$MathMaster logo$

MathMaster

Home
general
let s apply what we learned in a practical exercise 200 students respond a test and 10 of them answer question 12 incorrec

Question

Let's apply what we learned in a practical exercise. 200 students respond a test and 10% of them answer question 12 incorrectly. Considering that all the students answered question 12, how many students answer this question correctly?

115

likes

575 views

Answer to a math question Let's apply what we learned in a practical exercise. 200 students respond a test and 10% of them answer question 12 incorrectly. Considering that all the students answered question 12, how many students answer this question correctly?

$Expert avatar$

4.5

94 Answers

1. Calculamos cuántos estudiantes respondieron de manera errónea:

200 \times 0.10 = 20

2. Restamos los estudiantes que respondieron de manera errónea del total de estudiantes:

200 - 20 = 180

\boxed{180}

Frequently asked questions (FAQs)

What is the volume of a rectangular solid with length 10cm, width 5cm, and height 3cm?

+

Math question: "Factorize the expression 4x^2 - 9y^2 using the difference of squares formula?"

+

Question: What is the absolute extrema of the function f(x) = x^3 - 6x^2 + 9x + 2 on the interval [-2, 4]?

+

New questions in Mathematics

A=m/2-t isolate t

A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores?

Let X be a discrete random variable with range {1, 3, 5} and whose probability function is f(x) = P(X = x). If it is known that P(X = 1) = 0.1 and P(X = 3) = 0.3. What is the value of P(X = 5)?

By differentiating the function f(x)=(x³−6x)⁷ we will obtain

Suppose 50% of the doctors and hospital are surgeons if a sample of 576 doctors is selected what is the probability that the sample proportion of surgeons will be greater than 55% round your answer to four decimal places

(2x+5)^3+(x-3)(x+3)

find f(x) for f'(x)=3x+7

suppose random variable x follows poisson distribution with expected value 3. what is variance of x?

A storage maker price is $2.50 per square feet. Find the price of a custom shed 4 yards long, and 5yards wide and 8 feet tall

1. A capital of $3,831 was lent, and it has produced interest of $840 from 05-12-2022 to 1-12-2023. At what annual simple interest rate was the capital lent?

For what values of m is point P (m, 1 - 2m) in the 2⁰ quadrant?

Find the zero of the linear function 8x + 24 = 0

A group of 17 people spent 9 days on vacation and spent R$776.34 on barbecue meat and the bill needs to be divided as follows: 6 people stayed for 9 days, 7 people stayed for 4 days, and 2 people stayed for 5 days and 2 people stayed 3 days, how much does each group have to pay for the days they stayed?

The perimeter of a rectangular rug is 42 feet. The width is 9 feet. What is the length?