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Anastasy [175]
2 years ago
6

1)-12=-12+p 2)4=k- -15 5)x/14=4

Mathematics
1 answer:
Firlakuza [10]2 years ago
3 0

The solutions to the equations are p = 0, k =-11 and x = 56

<h3>What are equivalent equations?</h3>

Equivalent equations are different equations that have equal values when evaluated and compared

<h3>How to solve the equations?</h3>

The equations are given as:

1)-12=-12+p

2)4=k- -15

5)x/14=4

So, solve the equations as follows:

<u>Equation 1) -12 = -12 + p</u>

In this equation, we have:

-12 = -12 + p

Add 12 to both sides of the equation

p = 0

This means that the solution is p = 0

<u>Equation 2) 4=k- -15</u>

In this equation, we have:

4 = k -- 15

Evaluate the difference

4 = k + 15

Subtract 15 from both sides of the equation

k = -11

This means that the solution is k = -11

<u>Equation 5) x/14=4</u>

In this equation, we have:

x/14 = 4

Multiply both sides of the equation by 14

x = 56

This means that the solution is x = 56

Hence, the solutions to the equations are p = 0, k =-11 and x = 56

Read more about equations at:

brainly.com/question/2972832

#SPJ1

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Answer:

We need a sample of at least 752 students.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

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n is found when M = 0.03.

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(\sqrt{n})^{2} = (\frac{1.645*0.5}{0.03})^{2}

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Rounding up

We need a sample of at least 752 students.

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