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dimaraw [331]
3 years ago
13

5. Solve the equation 15 - 4x = 2(3x + 1).

Mathematics
1 answer:
Anastaziya [24]3 years ago
4 0

\huge\boxed{\ x=13/10 } :)

My steps:

First thing we do is: Rearrange terms

  • 15−4x=2(3x+1)
  • −4x+15=2(3x+1)

Second thing we do is: Distribute

  • −4x+15=2(3+1)
  • −4x+15=6x+2

Third thing we do is : Subtract  15 from both sides of the equation

  • −4x+15=6x+2
  • −4x+15−15=6x+2−15

Then you carry on and find solution:

  • x=13/10

Hope this help's!

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Find the area of a circle with a circumference of 6.28 unitesz
Anni [7]

Answer:

3.14 square units

Step-by-step explanation:

Circumference of a circle = 2πr

2πr = 6.28

r = 6.28/2π

r = 3.142/π

Area of a circle = πr^2

slot in the value of r

Area of the circle = π( 3.142/π)^2

               "              = π(9.87/ π^2)

                "             = 9.87/π

π = 3.14

Area of a circle = 9.867/ (3.14)

              "            = 3.14 square units

                     

8 0
3 years ago
Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!
Maurinko [17]

Answer:

same

Step-by-step explanation:

The maximum of f(x) is 8 because it's written in vertex notation. From the graph, g(x)'s maximum is 8 so the answer is that they have the same maximum.

3 0
3 years ago
5x + 9 = 10x - 9<br> How do I solve this?
dangina [55]
5x+9 = 10x-9
Take 5x from both sides
9 = 5x-9
Add 9 to both sides
18 = 5x
Divide by 5
3.6=x
6 0
3 years ago
Read 2 more answers
Two race cars,car x an y,are at the starting point of a two km track at the same time.car x and car y make one lap every 60 s an
tino4ka555 [31]

Answer is attached.

Please check the image.

4 0
4 years ago
What is the value of y?
NNADVOKAT [17]

Answer:

y = 40

Step-by-step explanation:

Lets make an equation to represent the sum of the angles:

We know that the sum of angles of triangles equals 180 degrees. So based on this knowledge, the equation is :

2y + y + 10 + 50 = 180


Now we simplify:

2y + y = 3y


10 + 50 = 60


So our new equation is 3y + 60 = 180

Now all we have to do is simplify:

3y + 60 = 180

3y + 60 -60 = 180 - 60

3y = 120

3y / 3 = 120 / 3

y = 40


So the answer is 40 hope this helped


7 0
3 years ago
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