All categories

2 years ago

What is 8x - ( 3x + 7 )= 23

Mathematics

1 answer:

slavikrds [6]2 years ago

3 0

8x - 3x - 7 = 23
5x - 7 = 23
5x = 30
x = 30/5 = 6

You might be interested in

The vertices of a triangle are given. Determine whether the triangle is an acute triangle, an obtuse triangle, or a right triang

adelina 88 [10]

Answer:

Obtuse triangle

Step-by-step explanation:

Given are the vertices of a triangle

Let A (-4, 0, 0),B (0, 0, 0),C(7, 2, 6)

Let us find angles between AB, BC and CA

AB = (4, 0,0): BC = (7,2,6) : CA = (11, 2,6)

Cos B = $\frac{AB.BC}{|AB||BC|} \\$

B = arc cos $\frac{AB.BC}{|AB||BC|} \\$ =137 deg 54 min 7 sec

Similarly

A=29 deg 53 min 53 seconds

C = 12 deg 12 min 3 sec

Obtuse triangle since one angle > 90 degrees

5 0

3 years ago

What is the area of this figure? 4 cm 5cm 5cm Enter your answer in the box. cm?

Kruka [31]

What’s the shape of it?
If it’s a rectangle 20
Bot something with more than 4 sides 100cm

6 0

3 years ago

How to solve 5/6=v+2/7

agasfer [191]

Answer:

5/6 = v + 2/7

Step-by-step explanation:

5/6 = v + 2/7

23/42 - v = 0

5/6 = 1/7 (7 v + 2)

5 0

2 years ago

Read 2 more answers

Select the two binomials that are factors of this trinomial.

const2013 [10]

$\huge{ \mathfrak{ \underline{question : }}}$

Select the two binomials that are factors of this trinomial.

$x_2 + 8x + 12$

$\huge{ \mathfrak{ \underline{Answer : }}}$

${x}^{2} + 8x + 12$

${x }^{2} + 6x + 2x + 12$

$x (x + 6) + 2(x + 6)$

$(x + 2)(x + 6)$

We got the factors as :

$A. \: (x + 6)$

and

$D. \: (x + 2)$

$\#TeeNForeveR$

7 0

2 years ago

Two consecutive whole numbers are n-1 and n

Orlov [11]

a. n-(n - 1) = 1

b. n( n - 1) = n² - n

c. (n - 1) + n = 2n - 1

d. (n - 1) + n = 2n - 1

<h3>Solution:</h3>

General Rule for Equation Solving

Remove parentheses and combine like terms to simplify each side of the equation.

To isolate the variable term on one side of the equation, use addition or subtraction.

To find the variable, use multiplication or division.

Given two consecutive numbers , (n - 1) , n

simplifying :

n - (n - 1)

= n -1(n - 1)

= n - n + 1

= 1

multiplying :

n( n -1)

= n² - n

simplifying :

(n-1) + n

= n - 1 + n

= 2n -1

by adding two numbers :

(n - 1) + n

= n -1 + n

= 2n - 1

To learn more about equations refer to :

brainly.com/question/22688504

#SPJ13

5 0

10 months ago