All categories

3 years ago

3x−8−12x=42 what is x?

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

3 0

Answer:

x = -50/9

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define equation

3x - 8 - 12x = 42

Step 2: Solve for x

Combine like terms: -9x - 8 = 42
Isolate x term: -9x = 50
Isolate x: x = -50/9

You might be interested in

Change the repeating decimal to a fraction: 0.376376376...

taurus [48]

Answer:

Answer is 3/4

Step-by-step explanation:

3 0

3 years ago

Math question I need help with

Greeley [361]

F(x) = (x - 4) (x^2 + 4) would be your answer.

4 0

3 years ago

What is the area of the regular pentagon below?

wolverine [178]

Answer:

21yd^2

Step-by-step explanation:

join the centre to all the vertex,

since this figure is of regular pentagon, it's will form 5 equal triangle of equal area!

now area of one such triangle is

1/2 ×base ×height

=1/2 ×3.5x2.4 (yd^2)

=4.2 yd^2

now the pentagon is sum of 5 such equal triangle,so it's are will be

5×4.2 (yd^2)

=21 yd^2

✌️:)

7 0

3 years ago

Which ordered pair makes both inequalities true?

kvasek [131]

Answer:

(3, 0)

Step-by-step explanation:

Given the inequality y > -2x + 3 and y ≤ x - 2

The graph of the inequalities are plotted using the geogebra graphing online calculator.

The portion of the graph that is shaded with dark blue, represents the portion that supports the equation.

All the ordered pair points given in the question are also labelled in the graph.

From the graph we can see that only point (3, 0) falls in the area that supports the equation. Hence (3, 0) makes both inequalities true.

6 0

3 years ago

Please help me I really need help

Leona [35]

Answer:

put the first point on -1 and then put your arrow --->

Step-by-step explanation:

8 0

3 years ago