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3 years ago

Simplify 3x - 4 - 5x = 6 + 4x + 2

Mathematics

2 answers:

qaws [65]3 years ago

7 0

The answer is x = -2

olga2289 [7]3 years ago

3 0

Answer:

x=(−2)

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 4x from both sides.

Step 3: Add 4 to both sides.

Step 4: Divide both sides by -6.

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There are 24 boys in a class, and 2/3 of the students in the class are boys. How many students are girls ?

tresset_1 [31]

Answer:

12 girls.

Step-by-step explanation:

24 ÷ 2 = 12

(This is divided to find out 1 part of the whole class as ⅓)

⅓ = 12

1 (whole) take away ⅔ = ⅓

Since ⅔ + ⅓ = 1

⅓ = fraction of girls in class

1 part = 12

So ⅓ = 12 girls out of 36 total students

Hope this helps. :)

5 0

3 years ago

WILL GIVE BRAINLIEST!!! Given tan(theta) = 4/3 and pi < theta < (3pi)/2, find cos(2theta).

babymother [125]

Answer: $\cos 2 \theta = \dfrac{-7}{25}$

Step-by-step explanation:

Given: $\tan \theta = \dfrac{4}{3}$ and $\pi < \theta< \dfrac{3\pi }{2}$

To find: $\cos 2 \theta$

Now as we know

$\cos 2x = \dfrac{1- \tan ^2 x}{1+ \tan ^2 x}$

So we have

$\cos 2 \theta = \dfrac{1-(\dfrac{4}{3} )^2}{1+(\dfrac{4}{3} )^2} \\\\\Rightarrow \cos 2 \theta = \dfrac{1- \dfrac{16}{9} }{1+ \dfrac{16}{9} } = \dfrac{\dfrac{9-16}{9} }{\dfrac{9+16}{9}} = \dfrac{-7}{25}$

Therefore d. is the correct option

Hence , $\cos 2 \theta = \dfrac{-7}{25}$

3 0

3 years ago

Read 2 more answers

What's the amount of the vega's March bill?

zzz [600]

Answer:

1,000 + 50= 1,050

400 + 15= 430

15 x 2 = 30

Their bill would be 1,050 + 430= 11480

Step-by-step explanation:

6 0

3 years ago

What is 5 < -8 + x as an inequality?

irakobra [83]

5<-8+x is equal to x>13

3 0

2 years ago

Read 2 more answers

I need help with that I don’t understand

VLD [36.1K]

Step-by-step explanation:

idk

7 0

3 years ago