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-Dominant- [34]
3 years ago
15

1.94x - 10/8x + 4.32 = [2(1.15x+8.5)]

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0
1,94x-\frac{10}{8}x+4,32=[2(1,15x+8,5)]\\\\
1,94x-1,25x+4,32=2,3x+17\\\\
0,69x+4,32=2,3x+17\ \ \ |Subtract\ 2,3x\\\\
-1,61x+4,32=17\ \ \ |Subtract\ 4,32\\\\
-1,61x=12,68\ \ \ |Divide\ by\ -1,61\\\\\boxed{x\approx7,9}

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The angles 3x+6 and 5x + 6 are supplements. What are the two angles
yarga [219]

Answer:

x = 21

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

Since they are supplements, that means that they add up to 180 degrees.

3x + 6 + 5x + 6 = 180

<u>Step 2:  Combine like terms</u>

3x + 6 + 5x + 6 = 180

(3x + 5x) + (6 + 6) = 180

8x + 12 = 180

<u>Step 3:  Subtract 12 from both sides</u>

8x + 12 - 12 = 180 - 12

8x = 168

<u>Step 4:  Divide both sides by 8</u>

8x / 8 = 168 / 8

x = 21

Answer:  x = 21

6 0
3 years ago
5 x 5 = 10 x 5= 20 x 5 = Answer these 3 problems and then tell how they are<br> related.
viva [34]

Step-by-step explanation:

First we need to find out what they all 3 equal, with multiplication.

5×5=25

10×5=50

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In each of these problems, the answer is multiplying itself by 2 in order to get to the next answer. So this is how they are related

6 0
3 years ago
X - 2 + 3 =(-2) how do you solve this?
Ket [755]

Answer:

x = -3

Step-by-step explanation:

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7 0
3 years ago
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liraira [26]

Answer:

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7 0
3 years ago
State the Postulate or Theorem that can be used to say that the triangles are congruent:
Snezhnost [94]

The congruence theorems or postulates that proves the following set of triangles are congruent are:

a. SAS congruence postulate

b. SSS congruence postulate

c. SAS congruence postulate

d. SAS congruence postulate

<h3>Triangle Congruence Postulates or Theorems</h3>
  • Two triangles having two pairs of congruent angles and a pair of included sides are congruent by the SAS congruence postulate.
  • Two triangles having three pairs of congruent sides are congruent by the SSS congruence postulate.
  • Two triangles having two pairs of congruent sides and a pair of included angles are congruent by the SAS congruence postulate.
  • Two triangles having two pairs of congruent angles and a non-included side are congruent by the SAS congruence postulate.

Therefore, the congruence theorems or postulates that proves the following set of triangles are congruent are:

a. SAS congruence postulate

b. SSS congruence postulate

c. SAS congruence postulate

d. SAS congruence postulate

Learn more about Triangle Congruence Postulates or Theorems on:

brainly.com/question/3432837

5 0
2 years ago
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