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mariarad [96]
2 years ago
15

How to find the measure of 2 supplementary angles if the differences in the measures of the angles is 102 degrees?

Mathematics
1 answer:
uysha [10]2 years ago
7 0
You would do 180 - 102 to find the answer
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Solve the given system by the substitution method. <br>3x + y = 14 <br>7x - 4y = 20​
Eva8 [605]

Answer:

(4, 2 )

Step-by-step explanation:

Given the 2 equations

3x + y = 14 → (1)

7x - 4y = 20 → (2)

Rearrange (1) making y the subject by subtracting 3x from both sides

y = 14 - 3x → (3)

Substitute y = 14 - 3x into (2)

7x - 4(14 - 3x) = 20 ← distribute parenthesis and simplify left side

7x - 56 + 12x = 20

19x - 56 = 20 ( add 56 to both sides )

19x = 76 ( divide both sides by 19 )

x = 4

Substitute x = 4 into (3) for corresponding value of y

y = 14 - 3(4) = 14 - 12 = 2

solution is (4, 2 )

8 0
2 years ago
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A 56-foot piece of siding is cut into three pieces so that the second piece is twice as long as the first piece and the third pi
ELEN [110]

The lengths of the first, second and third piece are respectively 8 ft, 16 ft and 32 ft

<h3>How to solve Algebra word Problems?</h3>

Let the length of the first piece be x.

Let the length of the second piece be 2x

Let the length of the thrid piece be 4x

Since the total length of the piece is 56 ft, then we can say that;

x + 2x + 4x = 56

7x = 56

x = 56/7

x = 8 ft

Thus, length of first piece = 8 ft

Length of second piece = 2 * 8 = 16 ft

Length of third piece = 4 * 8 = 32 ft

Thus, the lengths of the first, second and third piece are respectively 8 ft, 16 ft and 32 ft

Read more about Algebra Word Problems at; brainly.com/question/13818690

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5 0
2 years ago
If K(x) = |x-3| + x, find k(4)
swat32

Answer:

5

Step-by-step explanation:

First do substitution,

Which means |(4)-3|+4

Therefore 1+4=5

7 0
3 years ago
3x + 15<br> 2. Find the value of X
hram777 [196]

Answer:

x=-5 :)

Step-by-step explanation:

3x+15=0

    -15    -15

3x=-15

/3     /3

x=-5

7 0
3 years ago
4,5,6,7,8 , please hellppppp , i’m stuck . i will mark brainliest to the first person who gets them righttt
Volgvan
4)
ordered pairs : (-5,4)(-3,2)(2,6)(-3,-5) it is not a function because it repeats x’s
5)
ordered pairs : (4,5)(2,5)(1,-3)(-2,-2) it is a function because it is NOT repeating x’s
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(2,6)(6,8)(6,10)(8,12) it is not a function because it repeats x’s
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