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4 years ago

What is -7n-4=24 lol i hate homework

Mathematics

2 answers:

Tom [10]4 years ago

8 0

Add 4: -7n=28
Divide by -7: n=-4

Montano1993 [528]4 years ago

3 0

It's a simple linear equation in 'n'. There's only one number that 'n' can be
that will make the equation a true statement. That number is called the
'solution' to the equation. Here's one way to find it:

You said that  -7n - 4 = 24

Add 4 to each side: -7n = 28

Multiply each side by -1 : 7n = -28

Divide each side by 7 : n = -4

Homework is the only way for most people to learn stuff.

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The temperature in Minneapolis changed from -7°F at 6 AM to 7°F at noon. how much did the temperature increase?

Paraphin [41]

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3 years ago

Find the value of y, rounded to the nearest tenth. Please help me, I'd appreciate it!!

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3 years ago

In the equation, 6(3x+5) -4x =35 , what are some of the steps that should be taken to solve for x? Select all that apply.

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3 years ago

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snow_tiger [21]

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3 years ago

For a population with = 100 and = 20, what is the x value corresponding to z = 1.50?

mafiozo [28]

For a population with mean (μ) = 100 and standard deviation (σ) = 20, the X value corresponding to z = 1.50 is 130.

<h3>What is a z-score?</h3>

A z-score is also referred to as a standard score and it's a measure of the distance between a raw score and the mean, when standard deviation units are used.

<h3>How to determine the value of x?</h3>

In Statistics, the standardized z-score is giving by this formula:

$Z=\frac{\bar{x}\;-\;\mu}{ \sigma }$

Making x the subject of formula, we have:

x = Zσ + μ

Substituting the given parameters into the formula, we have;

x = 1.50(20) + 100

x = 30 + 100

x = 130.

Read more on z-scores here: brainly.com/question/4302527

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Complete Question:

For a population with μ= 100 and σ = 20, what is the X value corresponding to z = 1.50?

101.5

115

130

6 0

2 years ago