4 years ago

What is the value of x

Mathematics

2 answers:

gayaneshka [121]4 years ago

8 0

Answer:

-1x = 27

Step-by-step explanation:

5.x=5x

5.4=-20

7-(-20)=27

5x -4x=-1x

-1x=27

timama [110]4 years ago

3 0

Answer:

The answer to your question is: x = 27

Step-by-step explanation:

The are vertical angles, so they measure the same:

4x + 7 = 5(x - 4)

4x + 7 = 5x - 20 Expanding

4x - 5x = -20 - 7 Simplify like terms

-x = -27

x = 27

You might be interested in

Write a rule in words and as an algebraic expression to model the relationship in each table

goblinko [34]

The cost is the number of videos (V) times the cost of a video, plus the monthly fee.

C=2.25V+5

6 0

3 years ago

First stage of embryogenesis

Rufina [12.5K]

The process of embryogenesis begins with an egg or ovum being fertilized by a sperm cell to form a zygote.

8 0

4 years ago

Read 2 more answers

What 3 ratios are equivalent to 20:36

horsena [70]

Nov 3, 2014 - Math - Ms. Sue, Monday, November 3, 2014 at 4:29pm. 36:20 = 9/ ... Also, keep in mind that 36/20, 36:20, and 36 to 20 are the same.

3 0

4 years ago

Read 2 more answers

Plz help mee I am bad at math

Bumek [7]

it would be option D

6 0

3 years ago

Read 2 more answers

ind two numbers such that the sum of their squares is 100. The square of the larger number is equal to the sum of the product of

katovenus [111]

Answer:

$a=\sqrt\frac{120}{13}$

$b=\frac{-7}{4}\sqrt \frac{120}{13}$

Step-by-step explanation:

Let the larger number is a and the smaller number is b.

According to the question,

a² + b² = 100 .... (1)

And

a² = a (4b + 8a)

a = 4b + 8a

b = -7a/4 ..... (2)

Put in equation (1)

$a^{2}+\left ( \frac{-7a}{4} \right )^{2}=100$

65a² = 100 x 16

$a^{2}=\frac{600}{65}$

$a=\sqrt\frac{120}{13}$

Put in equation (2)

$b=\frac{-7}{4}\sqrt \frac{120}{13}$

4 0

4 years ago