7x + 31= 8x- 1 (27x+3)
-
3

Answer:

k = 5

Step-by-step explanation:

Since the equation is y = kx and x equals 3 while y equals 15, in order to solve this equation we are going to have to substitute the variables with their answers:

x = 3

y = 15

15 = 3k

Now we divide 3 from both 3x and 15 to segregate the variable x:

15/3 = 3k/3

5 = k

Now to check our work we are going to substitute 5 for the variable k, 3 for the variable x and 15 for the variable y.

y = kx

15= (5)(3)

15 = 15

Tada, I hope this helps you!

Answer:

k=5

Step-by-step explanation:

y=kx     Also meaning   y = k times x

x=3      y=15      

y divided by x   = 15 divided by 3 = 5

k=5

Lets Check Our Work

y=kx

15=?3

? times 3 is 15  = 5

Answer:

top left corner

Step-by-step explanation:

its pretty clear

Answer:9

Step-by-step explanation:

The answer got to be 6. So 6+3=9

Answer: 2.5

Step-by-step explanation:

first, transform the expression.

3√4^2

then, evaluate.

3√16

finally, simplify.

(alternate form): 2.51984

simplified to 2.5

Answer:

I  wanna say 10

Step-by-step explanation:

hope this helps

Answer:10 inches

Step-by-step explanation: 4+4+1+1=10The perimeter of a rectangle is the sum total length of all of its sides.[1] A rectangle is defined as a quadrilateral, or a geometric shape with four sides. In a rectangle, both sets of opposite sides are congruent, meaning that they are the same length.[2] While not all rectangles are squares, all squares can be considered rectangles, and a compound shape may be composed of rectangles.[3]

Answer:

The answer would be the last option. y<2/3x-1

Step-by-step explanation:

The slope is 2/3 and the line crosses the y axis at -1. Since the shaded part is below the line it would make the sign less than (<)

Answer:

y=10 when x=7

Step-by-step explanation:

y=2x-4

y=10

Substitute y with "10": 10=2x-4

Add 4 on both sides: 14=2x

x=7

Answer:

substitute 10 for y in the equation y=2x-4

10=2x-4

2x=10+4

2x=6

divide both side by 2

x=3

Answer:

orange

Step-by-step explanation:

Answer:

A it is linear because it has a constant rate of change

Answer:

A.

Step-by-step explanation:

I just finished the test and got it right

Answer:

7=7

Step-by-step explanation:

Simplify

7+37+3  to  1010.

7x=107x=10

Divide both sides by:

77 x={10}{7}x=  ​7  ​10

Let x=10/7x=   7 10/7 -3=77×  ​7  ​10

−3=7

Cancel 7:

10-3=710−3=7

Simplify

10-310−3  to  77.

​​  

Answer:

C

Step-by-step explanation:

I did it on edg...

C is the only equation that has both sets saying less than or equal to.

Therefore, (2,1) is the solution within c.

Answer:

y = 62

Step-by-step explanation:

Since we need to solve for x first, we'll solve the left triangle first. A triangle equals 180 degrees, so with in mind:

x + 7 + 3x - 18 + x - 9 = 180

add like terms

5x - 20 = 180

add 20 to both sides

5x = 200

divide by 5

x = 40

Now we have x, input it into the equations for the second triangles:

x + 21 + x + 17 + y = 180

40 + 21 + 40 + 17 + y = 180

add/simplify

118 + y = 180

subtract 118 from both sides

y = 62

Answer:

x = 40° ; y = 62°

Step-by-step explanation:

The figure consists of 2 triangles. According to Angle sum property in a triangle , sum of measure of all the angles of a traingle is equal to 180° .

So ,

[tex](3x - 18) + (x + 7) + (x - 9) = 180[/tex]

[tex] = > 5x - 20 = 180[/tex]

[tex] = > 5x = 180 + 20 = 200[/tex]

[tex] = > x = \frac{200}{5} = 40[/tex]

Now using the angle sum property in another triangle ,

[tex](x + 21) + (x + 17) + y = 180[/tex]

[tex] = > y + (40 + 21) + (40 + 17) = 180[/tex]

[tex] = > y + 61 + 57 = 180[/tex]

[tex] = > y + 118 = 180[/tex]

[tex] = > y = 180 - 118 = 62[/tex]

The lateral surface area of the triangular prism is

Explanation:

The side lengths of the base of the triangular prism are 5 meters, 8 meters, and 10 meters.

It is given that the height of the prism is 16.5 meters.

To determine the lateral surface area of the prism, let us use the formula

LSA =  (a + b + c)h

where a, b,c are the side lengths of the base of the triangular prism and h is the height of the prism.

Here: a = 5, b = 10,c = 8 and: h = 16.5

Substituting these values in the formula, we have,

LSA = (5 + 10 + 8) 16.5

Simplifying, we get,

LSA = (23) 16.5

Multiplying, we get,

LSA = 379.5

Thus, the lateral surface area of the triangular prism is,

379.5sq. units

Answer:

54

Step-by-step explanation:

it's so easy just do

18÷1/3=54 which is easir if you think it like 18×3=54

Answer:

54

Step-by-step explanation:

For every liter of sports drink, there is 3 players. You can use this problem to solve it y = 3x  or now  54 = 3(18). Simply it is 3 * 18 is 54. 3 is from 3 people per liter.

Answer:

We know that the circumcenter of a right triangle is at the center of the hypotenuse.

Thus, the circumcenter of a triangle is: C(-1, 1/2)

Please check the attached figure.

Step-by-step explanation:

Given the triangle with the coordinates of the vertices

First plot the points on the graph, as shown in the attached diagram.

It is clear from the attached diagram that it forms a right triangle.

From the attached diagram, it is clear that the center of the hypotenuse lies on C(-1, 1/2).

Thus, the circumcenter of a triangle is: C(-1, 1/2)

Please check the attached figure.

Answer:

88

Step-by-step explanation:

46= x° ( isosceles angles )

Now, taking all side of the triangle

46+46+y =180 ( sum of all side of triangle )

or, y= 180 -92

y = 88°

Answer:

$18,000

Step-by-step explanation:

10,000+800 (the 8%) =made in 1 year

800 * 10= 8,000

Answer:

x<4

Step-by-step explanation:

5x-18>2(4x-15)

5x-18> 8x-30

-18>3x-30

12>3x

4>x

x<4

Answer:

$20<$n<$30

Step-by-step explanation:

Answer:

n= 11 & n = 13 is the answer

Answer:

6/2 = 3

Step-by-step explanation:

there are 2 people, when you divide the 6 trout by the 2 people, they will each get 3 fishes

Answer:

I think you meant to put an attachment but I don't see one

Step-by-step explanation:

9514 1404 393

Answer:

  x = 18

Step-by-step explanation:

Add the opposite of the constant (-5), and multiply by the inverse of the coefficient of x (2/3).

  [tex]\dfrac{2}{3}x -5=7\\\\\dfrac{2}{3}x=12 \qquad\text{add 5}\\\\x=\dfrac{3}{2}\cdot 12 \qquad\text{multiply by $\dfrac{3}{2}$}\\\\ \boxed{x=18}[/tex]

Answer:

2/3x -5=7

x=18

Step-by-step explanation:

start by adding each side by 5

after doing so you should have

2/3x =12

multiply each side now my 3/2

the fractions should cancel out and leave x by itself

multiply (12)3/2

gives you 18.

x=18

Answer:

2

Step-by-step explanation:

|-8| + (-6)

8 - 6

2

Best of Luck!

Answer:

46

Step-by-step explanation:

Well $1o each than 10×4=40 and 40 +6=46

Answer:

Expression:  6c+10f

Answer:

13$ dollars

Step-by-step explanation:

I hope this helps

Answer:

it got to be b the 4 is on the line 3 so be -3 and 4 postive