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Vilka [71]
3 years ago
15

Solve this plz

Mathematics
2 answers:
Zarrin [17]3 years ago
8 0

Answer:

a. 9x + 36 = 27

   9x = -9

   x = -1

b. x/3 - 5 = 6

x/3 = 11

x = 33

c. 15 + 3x - 21 = -30

    3x - 6 = -30

     3x = -24

     x = -8

Step-by-step explanation:

frozen [14]3 years ago
5 0

A) 9(x + 4) = 27

9x + 36 = 27

9x = 27 - 36

9x = -9

x = -9 ÷ 9

x = -1

B) x/3 - 5 = 6

x/3 = 6 + 5

x/3 = 11

x = 11 × 3

x = 33

C) 15 + 3 ( x -7 ) = -30

15 + 3x - 21 = -30

3x + 15 - 21 = -30

3x - 6 = -30

3x = -30 + 6

3x = -24

x = -24 ÷ 3

x = -8

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In triangle ABC, m&lt;A = 30° and m&lt;B = 50°. What is the measure of Angle C?<br><br>​
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Answer:

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Step-by-step explanation:

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8 0
2 years ago
Giovanni justifies whether the expression -4x-8 is equivalent to -2(x+1)-2(x+3) by letting x=3 in both expressions. What is the
Lorico [155]

Answer:

The value of each expression when x=3 will be -20 and -20.

Step-by-step explanation:

Given the expression

-4x-8

setting x=3

= -4(3)-8

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Given the expression

-2(x+1)-2(x+3)

setting x=3

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3 0
3 years ago
4th term of an arithmetic sequence is 23 and its 11th term is 65, what is its common difference​
Rudik [331]

Answer:

d = 6

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

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a₁ + 3d = 23 → (1)

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Subtract (1) from (2) term by term to eliminate a₁

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3 years ago
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