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Annette [7]
2 years ago
8

What is 8 - 4x = 20 !!!

Mathematics
2 answers:
guapka [62]2 years ago
5 0

Answer:

x = -3

Step-by-step explanation:

Art [367]2 years ago
4 0

Answer:

x = -3

Step-by-step explanation:

  8-4*x-(20)=0

Pulling out like terms

  -12 - 4x  =   -4 • (x + 3)

   -4   =  0

  x+3 = 0

Subtract  3  from both sides of the equation :

                     x = -3

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A 1x1 square and an n-tiling is a group of n tiles placed so that every tile is contiguous along at least one side to another ti
bixtya [17]

Answer:

Step-by-step explanation:

The first picture below shows the missing image in the question.

There are 4 edges of each tile;

This clearly explains to us that the total number of edges present in the n tiles is 4n.

Now, if a tile "X" touches and comes in contact with another tile "Y", then edges touching each other are one edge of a tile X and one edge of a tile Y.

From the second diagram below, the edge, X_2, and Y_4 are touching each other.

Now, the total number of edges that touch some edges is always even.

We can now say that:

The edge length of filling = No. of edges that do not touch another file

= Total no. of edges  -  No. of edges that touch another edge.

However, the total number of edges is even.

The number of edges that touch another edge is also even.

Thus, the difference is also even and the number of edges that do not touch another is even.

So, the edge length of filling is always even.

6 0
3 years ago
Half the sum of a number and 1.75 is −5.1. Enter your answer as a simplified mixed number
musickatia [10]

The unknown number expressed as a mixed fraction is 11 19/20

Let the unknown number be "x"

The sum of the number and 1.75 is expressed as x + 1.75

Half the sum of a number and 1.75 is 1/2(x+1.75)

Equating the result to -5.1 wil give:

1/2(x+1.75) = -5.1

Solve the resulting equation

x + 1.75 = 2(-5.1)

x + 1.75  = -10.2

x = -10.2 - 1.75

x = 11.95

x = 1195/100

x = 11 95/100

Hence the unknown number expressed as a mixed fraction is 11 19/20

Learn more here: brainly.com/question/14583740

5 0
2 years ago
a cell phone company offers two different monthly plans.plan a charges $41 for unlimited cell phone minutes plus $0.10 per text
tiny-mole [99]

41+0.10x = 31+0.15x

10 +0.10x=0.15x

10=0.05x

x=10/.05

x= 200 text messages


check 200*0.10 = 20 +41 =61

200*0.15 = 30+31 = 61

 they equal each other so number of texts is 200

6 0
3 years ago
How much cakes can you bake if 1,12 of teaspoon of vanilla and she has 9/12 of teaspoon?
prohojiy [21]
If 9/12 is how much it takes to bake a cake you would need 9 of 1 and1/2
7 0
3 years ago
What similarity statement can you write relating the three triangles in the diagram?
murzikaleks [220]

Answer:

d

Step-by-step explanation:

8 0
3 years ago
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