3 years ago

4x+12=0 how do you solve

Mathematics

2 answers:

irina [24]3 years ago

6 0

The correct answer is x=-3

Olenka [21]3 years ago

3 0

Here is how you solve
4x+12-12=0-12
4x=-12
x=-3

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Show the work please help me

stepladder [879]

X=45 since 90-45=45

Hope this helps

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3 years ago

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What x-value makes the set of ratios equivalent? Tiles 2 : 3 = 6 : x ,4 : 7 = x : 42 , 2x : 48 = 3 : 12, 12 : 15 = x : 20

Naya [18.7K]

Step-by-step explanation:

2 : 3 = 6 : x ,

Ratio can be written as

$\frac{2}{3} = \frac{6}{x}$

2*3 = 6, we multiply top and bottom of fraction by 3

$\frac{2*3}{3*3} = \frac{6}{9}$

So value of x=9

4 : 7 = x : 42 ,

$\frac{4}{7} = \frac{x}{42}$

7*6 = 42, we multiply top and bottom of fraction by 6

$\frac{4*6}{7*6} = \frac{24}{42}$

So value of x=24

2x : 48 = 3 : 12,

$\frac{2x}{48} = \frac{3}{12}$

\frac{3}{12}[/tex] = $\frac{2x}{48}12*4 = 48, we multiply top and bottom of fraction by 4[tex]\frac{3*4}{12*4} = \frac{12}{48}$

2x= 12, so x= 6

12 : 15 = x : 20

$\frac{12}{15} = \frac{x}{20}$

$15 * \frac{4}{3} = 20$ ,

we multiply top and bottom by 4/3

$12 * \frac{4}{3} = 16$

So value of x=16

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3 years ago

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In the data set below, what is the lower quartile? 1 2 3 3 7 8 8

Levart [38]

Is this all the question???

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3 years ago

Which of the following equations has infinitely many real solutions? A. 3(x - 7) = 3x + 21 B. 3x + 1 = 3x - 1 C. 3x + 1 = x - 1

Anon25 [30]

Answer is D. 3(x - 7) = 3x - 21

because

3(x - 7) = 3x - 21

Distributive property

3x - 21 = 3x - 21

0 = 0

Infinitely many real solutions

6 0

4 years ago

Hi! plz help it would mean a lot ty! and plz don't troll! first person who solves it get brainlist!

Margaret [11]

Answer:

its b

Step-by-step explanation:

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3 years ago

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