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dem82 [27]
2 years ago
8

I will give brainliest to whoever answers first

Mathematics
2 answers:
Ulleksa [173]2 years ago
6 0

Answer:

AC : BC = 2 : 3

Step-by-step explanation:

AB : AC = 1 : 2

therefor

2(3x - 4) = 2x + 12

6x - 8 = 2x + 12

4x = 20

x = 5

-----------------

AC = 2x + 12 = 22

BC = 7x - 2 = 33

AC : BC = 22 : 33

Divide by 11

AC : BC = 2 : 3

mojhsa [17]2 years ago
4 0

2(3x - 4) = 2x + 12

6x - 8 = 2x + 12

4x = 20

x = 5

AB = 3(5) - 4 = 11

AC = 2(5) + 12 = 22

BC = 7(5) - 2 = 35 - 2 = 33

AC:BC = 22:33 = 2:3

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erastova [34]

Answer:

290

Step-by-step explanation:

first you multiply 27 times 13 and get 351.you then subtract 351 from 61 and get 290.

4 0
3 years ago
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3-(x-3)=25 solve the equation
kherson [118]

Answer:

x= -19

Step-by-step explanation:

3-(x-3)=25

Distributive property to cancel out the paranthesis

3-x+3=25

Add the number

6-x=25

Subtract 6 on both sides

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Divide by -1 on both sides so the x to eliminate the negative sign

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7 0
3 years ago
|1/4 x +2| -3 =5 solve for x and graph on number line
kaheart [24]

The value of x on the number line is 24 and - 40

A number line in elementary mathematics is a representation of a graduated straight line that acts as an abstraction for real numbers, represented by the letter R. It is assumed that every point on a number line corresponds to a real number, and that every real number corresponds to a point.

When seen as a geometric space, namely the one-dimensional Euclidean space, the number line, also known as a real line in advanced mathematics, is technically defined as the set R of all real numbers. It can be conceptualized as a linear continuum, metric space, topological space, vector space (or affine space), measure space, or topological space.

The given equation is

|\frac{1}{4}x+2 | -3=5

Solving the equation:

or,|\frac{1}{4}x+2 | =5+3\\or,|\frac{1}{4}x+2 |=8\\or,\frac{1}{4}x+2=\pm8\\or,x+8=\pm32\\or,x=-8\pm32

Now we take the two separate values of x:

either x=-8+32 or x=-8-32

or,x=24 or x=-40

The value of x is 24 and - 40.

To learn more about number line:

brainly.com/question/24644930

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7 0
2 years ago
students who failed mathematics scored the following marks 16.5,13.6,12.4,13.7 find the average mark for this students​
SSSSS [86.1K]

Answer:

16.5+13.6+12.4.17.7= 60.2

60.2÷4 =15.05

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3 years ago
The math department sold pie slices to buy new math books. Two pies were contributed by members of the department. Each pie was
kenny6666 [7]
The answer is 8, just divide 6 by 48. Hope it helped.
8 0
3 years ago
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