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3 years ago

Questions 1 . 2 . 3 . 4

Mathematics

1 answer:

jolli1 [7]3 years ago

6 0

1.
A.add=12
B. subtract=7
C. subtract= -4
D .add=9
E. subtract=2
F. subtract= -2
G. add= -14
H. subtract= -1

2.
A.1
B.13
C.5
D.-1
E.54
F.40
G.40
H.-3

3.
A.-24
B. 24
C. -32
D. 30
E. -60
F. -40

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3 years ago

Read 2 more answers

If f(x)=4x and g(x)=2x-1 what is g(f(-2))

azamat

F(-2) = 4x(-2) = -8;
g(f(-1))= g(-8) = 2x(-8) -1 = -16 - 1 = -17.

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3 years ago

The cost of a council tax bill increased by 5%.

andreyandreev [35.5K]

The council tax bill before the increase is £1240

The equation that represents the percentage increase in council tax bill is :

percentage increase x t = £62

Where t represents the initial council tax bill - council tax bill before the 5% increase

5% x t = £62

0.05 x t = £62

Divide both sides of the equation by 0.05

t = £62 / 0.05 = £1240

To check if the answer derived is correct : 5% x 1240 = 62.

A similar question was answered here: brainly.com/question/12066598?referrer=searchResults

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3 years ago

Plz help me answer this

timofeeve [1]

Answer:

(-2, -8)

x = -2

y = -8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

13x - 6y = 22

x = y + 6

Step 2: Solve for y

Substitution

Substitute in x: 13(y + 6) - 6y = 22
Distribute 13: 13y + 78 - 6y = 22
Combine like terms: 7y + 78 = 22
Isolate y term: 7y = -56
Isolate y: y = -8

Step 3: Solve for x

Define original equation: x = y + 6
Substitute in y: x = -8 + 6
Add: x = -2

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3 years ago