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Alex777 [14]
2 years ago
15

Suppose you are solving an inequality. Under what circumstances do you reverse the inequality symbol? Select all that apply.

Mathematics
1 answer:
gayaneshka [121]2 years ago
4 0

Answer:

When you're dividing, I only know that one. sorry..

Step-by-step explanation:

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Guided Practice
7nadin3 [17]

Answer:

C.

4x – y = 7

Step-by-step explanation:

Write in standard form.

4

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−

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y

=

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x

−

7

The standard form of a linear equation is  

A

x

+

B

y

=

C

.

Rewrite the equation with the sides flipped.

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Move all terms containing variables to the left side of the equation.

Tap for more steps...

4

x

−

y

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Add  

7

to both sides of the equation.

4

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y

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7

variable

A letter used to represent a number value in an expression or an equation.

equation

A mathematical statement that says two expressions have the same value; any number sentence with an  

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7 0
2 years ago
Read 2 more answers
A Ferris vil can accommodate 55 people in 15 minute how many people could ride the Ferris ville in 2 hours what is the rate per
AnnyKZ [126]

15 minutes is one quarter of an hour, so the number of people accommodated in an hour would be 4 x 55 = 220 people per hour

3 0
3 years ago
I need help. if i dont pass this, i wont pass. Will give brainliest!
Tatiana [17]

A the lines are parallel

8 0
3 years ago
If you have 4 gallons of sweet tea, how many cups is this?
Angelina_Jolie [31]

Answer:

64 cups of sweet tea

Step-by-step explanation:

6 0
3 years ago
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​Recently, a random sample of 13-18 year olds was​ asked, "How much do you currently have in​ savings?" The data in the table re
Sonbull [250]

Answer:

μ = 235.38

σ = 234.54

Step-by-step explanation:

Assuming the table is as follows:

\left[\begin{array}{cc}Savings&Frequency\\\$0-\$199&339\\\$200-\$399&86\\\$400-\$599&55\\\$600-\$799&18\\\$800-\$999&11\\\$1000-\$1199&8\\\$1200-\$1399&3\end{array}\right]

This is an example of grouped data, where a range of values is given rather than a single data point.  First, find the total frequency.

n = 339 + 86 + 55 + 18 + 11 + 8 + 3

n = 520

The mean is the expected value using the midpoints of each range.

μ = (339×100 + 86×300 + 55×500 + 18×700 + 11×900 + 8×1100 + 3×1300) / 520

μ = 122400 / 520

μ = 235.38

The variance is:

σ² = [(339×100² + 86×300² + 55×500² + 18×700² + 11×900² + 8×1100² + 3×1300²) − (520×235.38²)] / (520 − 1)

σ² = 55009.7

The standard deviation is:

σ = 234.54

6 0
3 years ago
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