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Lina20 [59]
3 years ago
15

Find the solution to the system of equations. 4x + 3y = –1 3x – 9y = 33

Mathematics
1 answer:
alexandr1967 [171]3 years ago
5 0

Answer:

Step-by-step explanation:

4x + 3y = -1         --------------(i)

3x - 9y = 33        -------------(ii)

multiply equation (i) by 3

(i)* 3     12x + 9y = -3

(ii)       <u>   3x - 9y = 33</u>

add,       15x = 30

                 x = 30/15

                 x = 2

Put x =2 in Equation (i)

4*2 + 3y = -1

8 +3y = -1

     3y = -1-8

     3y = -9

       y = -9/3

       y= -3

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For which rational expression is –2 an excluded value of x?
Kipish [7]

Answer:

option a is the answer

Step-by-step explanation:

put the value of x in each expression as x = -2

you'll see that in option a the expression becomes

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which is not defined. hence -2 is excluded value

5 0
3 years ago
100-point Question!!!
FrozenT [24]

Answer:

Two or more independent functions (say f(x) and g(x)) can be combined to generate a new function (say g(x)) using any of the following approach.

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The approach or formula to use depends on the question.

In this case, the combined function is:

f(x) = 75+ 10xf(x)=75+10x

The savings function is given as

s(x) = 85s(x)=85

The allowance function is given as:

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The new function that combined his savings and his allowances is calculated as:

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Substitute values for s(x) and a(x)

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Open bracket

f(x) = 85 + 10x - 10f(x)=85+10x−10

Collect like terms

mark as brainiest

f(x) = 85 - 10+ 10xf(x)=85−10+10x

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4 0
2 years ago
Francine has a collection of 25 dolls. If 12% of the dolls are Monster High dolls, how many of the dolls are not Monster High Ex
Oksi-84 [34.3K]

9514 1404 393

Answer:

  22

Step-by-step explanation:

The number of Monster High dolls is ...

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The others are not Monster High dolls. Their number is ...

  25 -3 = 22 . . . not Monster High dolls

4 0
3 years ago
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3 years ago
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so ur answer is : B. y is less then or equal to x
3 0
3 years ago
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