Help please I need help with this

Step-by-step explanation:

Yea we need more information.

Answer:

X=30

Step-by-step explanation:

y=kx

6=10k

k=0.6

y=0.6x

18=0.6x

X=18/0.6

x=30

The value of x when y = 18 is 30.

Direct variations are defined as the functions of the form y = kx, where k is a constant.

Here when y increases, x increases and if y decreases, x also decreases.

Given that y varies directly as x.

That is the equation relating y and x can be written as,

y = kx, for some constant k.

Given that,

When x = 10, the value of y = 6.

Substitute in the equation.

6 = 10k

k = 6/10 = 3/5

Now we have to calculate the value of x when y = 18.

Substitute the found values and given values in the equation.

18 = (3/5) x

x = (18 × 5) / 3

x = 30

Hence the value of x is 30 when y = 18.

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Answer:

27?

Step-by-step explanation:

27 is a whole number you know

Answer:

Quotient : 3x³ + x² + x + 3

Step-by-step explanation:

Give the polynomial :

Dividend : 3x⁴+16x³+6x²-2x-13;

Divisor : x+5

Kindly check attached picture for detailed explanation.

Answer:you have to find how much hrs are together the multiply by 2 and dived really i just need points

Step-by-step explanation:

Answer:

I = P/(RT)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define

P = IRT

Step 2: Solve for I

Answer:2(x+2)(x+3)

Step-by-step explanation:

First we have to take out the 2 in the equation

2(x^2+5x +6)

Then we can factor that

2(x+2)(x+3)

Answer:

What are you talking about .

Step-by-step explanation:

Answer:

-1.6

Step-by-step explanation:

Answer:

Mean=88

Median=85

Mode=85

Answer:

a.)x² + y² = 900

b.)y = √900 - x²

Step-by-step explanation:

P.S - The exact equation is as follows :

As given,

The shape of the roller coaster is a half of a circle. Center the circle at the origin and assume the highest point on this leg of the roller coaster is 30 feet above the ground.

a.)

Equation of circle be x² + y² = r²

As given , leg of the roller coaster is 30 feet above the ground.

⇒ r = 30

⇒x² + y² = 30²

⇒x² + y² = 900

∴ we get

Equation of height of Roller coaster - x² + y² = 900

b.)

As we have,  x² + y² = 900

⇒y² = 900 - x²

⇒y = √900 - x²

The equation that models the height of the roller coaster is [tex]y = \sqrt{900 -x^2[/tex]

The general equation of a circle is:

[tex]x^2 + y^2 = r^2[/tex]

From the complete question, the radius of the circle is 30 units.

This means that:

r = 30

So, we have:

[tex]x^2 + y^2 = 30^2[/tex]

Express 30^2 as 900

[tex]x^2 + y^2 = 900[/tex]

Subtract x^2 from both sides

[tex]y^2 = 900 -x^2[/tex]

Take square roots of both sides

[tex]y = \pm \sqrt{900 -x^2[/tex]

Remove the negative root

This is so because the roller coaster is above the ground, and the height will be positive.

So, we have:

[tex]y = \sqrt{900 -x^2[/tex]

Hence, the required equation is [tex]y = \sqrt{900 -x^2[/tex]

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Answer:63

Step-by-step explanation:

I know this its 63

Answer:

Step-by-step explanation:

a)   21 divided by 3 = 7

       answer = 7

b)21+21=42

      answer = 2

c) 7+6 = 13

   answer = 7

d) I don't know or it could be -8-8= -16   (I am not sure)

e) 3 x 30= 90

  answer= 90

f)-7-6 = -13

answer= -13

Answer:

5.5

Step-by-step explanation:

Fisrst I would rearange the equation to read 8.25 -2.75 from there you would just subtract as normally.

Answer: it 13 units

Let M (-12, 5) be the given point and O (0, 0) be the origin. = 13 units.

Step-by-step explanation:

hope this helps have a nice night ❤️❤️❤️❤️

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

8.3

Step-by-step explanation:

Answer:

(-4,-0.5)

Step-by-step explanation:

Answer:

£976

Step-by-step explanation:

Answer:

(2,-1)

x=2

y=-1

Step-by-step explanation:

Answer:

My answer is letter d

Step-by-step explanation:

Sorry when im wrong

Answer:

B

Step-by-step explanation:

GRRRHRGR H.C DGDVFVDVECDEC

Answer:

x=-2 y =12

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

−6x=−4x+4

Solve

−6x=−4x+4

x=−2

y= 12

The solution to the system is the complete set of ordered pairs that are valid solutions.

(−2,12)

The result can be shown in multiple forms.

Point Form:

(−2,12)

Equation Form:

x=−2,y=12

Answer:

it should be 40º but it doesn't look like that's an option...

Step-by-step explanation:

so we know that the inside of a triangle is equal to 180º and for the triangle on the right we already have two angles. so we can add the angles (41 + 72 = 113) and then subtract that from 180 to find the missing angle.

180 - 113 = 67º

now we also know that vertical angles are congruent/the same. so the vertice that is connecting the two triangles is also 67º. we can do the same thing we did with the other triangle, add the angles up and subtract from 180.

67 + 73 = 140

180 - 140 = 40º

we know this is true because when you add all the angles up it equals 180.

67 + 73 = 140 + 40 = 180

44 would put it at 184º which is not correct, and 150 would put it at 290ª which is also not correct...

Answer:

b

Step-by-step explanation:

Answer:

Step-by-step explanation:

8x -28 = 4(x - 28)

12x + 15 = 3(4x + 5)

Answer:

Step-by-step explanation:

The required solutions of the given system of equations is x = -7 and y = -5.

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

Here,

Given system of equation

y=x+2 - - - - -(1)

y=4x+23 - - - - (2)

From above equations,
x + 2 = 4x + 23
x = -7

Now,
y = -7 + 2
y = -5

Thus, the required solutions of the given system of equations is x = -7 and y = -5.

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