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4 years ago

Is the inequality true. -2(2x+9)>_4x+9

Mathematics

2 answers:

zlopas [31]4 years ago

6 0

Answer:

The inequality is not true

Step-by-step explanation:

we have

$-2(2x+9)> -4x+9$

Distributed left side

$-4x-18 > -4x+9$

Adds 4x both sides

$-18 > 9$ ----> is not true

Oksana_A [137]4 years ago

3 0

Answer:

The inequality is False

Step-by-step explanation:

We say that an inequality is true when the inequality symbol is satisfied. For example

$5> 2$ → True

On the contrary when inequality is not satisfied we say that it is false. For example:

$2> 30$ → False

2 is not greater than 30, therefore it is said that inequality is not satisfied.

In this case we have the following inequality:

$-2(2x+9)>-4x+9$

To find out if inequality is satisfied, we simplify the terms

$-2(2x+9)>-4x+9$

$-4x-18>-4x+9$

$-18>9$

Observe that -18 is not greater than 9, therefore it is said that inequality is not satisfied.

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Sati [7]

Each transformation will give these following coordinates

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8 0

3 years ago

Please answer this correctly

Dovator [93]

Answer:

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6 0

3 years ago

Read 2 more answers

4.5/w = 3 what is the W?

Oduvanchick [21]

Answer:

w=1.5 or w=13.5

Step-by-step explanation:

this is one answer:

multiply w on both sides to leave u with

4.5=3w

divide both sides by 3

$\frac{4.5}{3}=\frac{3w}{3}$

1.5=w

_____________________

this is the second one if the first one is wrong:

multiply 4.5 on both sides so that the 4.5/w would leave u with just only w alone.

then 3*4.5=13.5

w=13.5

hope dis helps if not then im not dat smart enough ;?

3 0

3 years ago

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Elodia [21]

Answer:

by-step explanation:

8 0

3 years ago

9 is the difference between two numbers, and their sum is 31. Find the numbers.

algol [13]

Answer:

The first number is 20, the second one is 11

Step-by-step explanation:

Let the first number be x and the second number be y

Since it says "9 is the difference between two numbers", the first equation will be x-y=9

It also says that "their sum is 31". That means the second equation will be x+y=31

here are the two equations:

x-y=9

x+y=31

You can solve this any way you like, but I'll show elimination

add the two equations

x-y=9

x+y=31

2x=40

divide by 2

x=20

Substitute 20 as x in one of the equations

20+y=31

subtract 20 from both sides

y=11

That means the two numbers are 20 and 11

Hope this helps!

4 0

3 years ago