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3 years ago

The inequality x + 13 < 0 Give your answer in interval notation.

Mathematics

2 answers:

nika2105 [10]3 years ago

6 0

Answer:

$\large\boxed{x$

Step-by-step explanation:

$x+13$

elixir [45]3 years ago

4 0

Answer:(−∞,-13)

Step-by-step explanation:

solve for x the convert to interval notation

x<-13 → (−∞,-13)

Since it's a < and not a ≤ you use a parentheses instead of a bracket

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user100 [1]

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$3x\geq-9$

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2 years ago

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Savatey [412]

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Step-by-step explanation:

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3 years ago

Last time, one out of every 4 students in our class was absent. This time, after Jen came back, only one out of every 5 students

VMariaS [17]

Answer: There are 20 students and 4 students are not here today.

Step-by-step explanation:

If the number of students = 4

Let the number of students be 'x'.

Fraction of students absent = $\dfrac{x}{4}$

If the number of students = 5

Fraction of students absent = $\dfrac{x}{5}$

And Jen came back,

So, the fraction of student absent is also written as

$\dfrac{x}{4}-1$

According to question, it becomes,

$\dfrac{x}{5}=\dfrac{x}{4}-1\\\\\dfrac{x}{5}=\dfrac{x-4}{4}\\\\4x=5(x-4)\\\\4x=5x-20\\\\4x-5x=-20\\\\-x=-20\\\\x=20$

Hence, there are 20 students in our school.

And number of students are not here today is $\dfrac{20}{5}=4$

3 0

3 years ago

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Mazyrski [523]

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7 0

2 years ago

Read 2 more answers

I need help please!!!

galben [10]

Answer:

Y= 3

Step-by-step explanation:

When the line hits - 1

The y axis shows that its 3

3 0

3 years ago

The inequality x + 13 < 0 Give your answer in interval notation.​

The inequality x + 13 < 0 Give your answer in interval notation.