Hey I'm Chloe, Can You Help Me Thank you :)
y varies proportionally with x. When x = 2, y = 18.
What is the constant of proportionality for this relationship?

Answer:

y=2/3x-1

Step-by-step explanation:

slope intercept form is y=mx+b

where m is the slope and b is the y-intercept

You already know that the slope is 2/3 and the intercept is -1 so all you have to do is plug it in

y=2/3x-1

Answer: 24.0825%

Step-by-step explanation:

8.25% as fraction: 33/400

24+33/400

Convert element into fraction: 24x400/400

24x400/400+33/400= 9633/400

Final step: Make it into a decimal

24.0825% is your answer

Answer:

d

Step-by-step explanation:

took the test

2x³ + xy and 2 + 5x - 3x³ are trinomials with degree 3.

Options C and D are the correct answer.

Polynomial is an equation written with terms of the form kx^n.

where k and n are positive integers.

There are quadratic polynomials and cubic polynomials.

Example:

2x³ + 4x² + 4x + 9 is a cubic polynomial.

4x² + 7x + 8 is a quadratic polynomial.

We have,

The degree of a polynomial is the highest power of the variable in the polynomial.

a.

2xy² is a monomial with degree 3 (degree of x is 1 and degree of y is 2).

b.

3x + 3x² is a binomial with degree 2 (degree of x is 2).

c.

2x³ + xy is a trinomial with degree 3 (degree of x is 3).

d.

2 + 5x - 3x³ is a trinomial with degree 3 (degree of x is 3).

Therefore,

2x³ + xy and 2 + 5x - 3x³ are trinomials with degree 3.

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The question is incomplete. Here is the complete question.

Mr. Jackson decides to build a planter in the shape of a cube fo rhis wife. The top of the planter will be open so his wife can plant and water her flowers. The perimeter of the bottom of the planter is 12 feet.

How many square feet of material does Mr Jackson need to build the planter?

(a) 27 square feet

(b) 45 square feet

(c) 60 square feet

(d) 720 square feet

Answer: 45 square feet

Step-by-step explanation: A cube is a regular solid with six square faces.

Square is a quadrilateral with 4 right angles and 4 equal sides. So a cube is solid formed by 6 squares.

Perimeter is the sum of all the sides. For a square, perimeter is given by

P = 4s

Then, side of the bottom is

[tex]s=\frac{P}{4}[/tex]

[tex]s=\frac{12}{4}[/tex]

s = 3

Area of a square is

[tex]A=s^{2}[/tex]

[tex]A=3^{2}[/tex]

A = 9

The planter is a cube with 5 faces, because the top is open. Then, total area is

[tex]A_{t}=9+9+9+9+9[/tex]

[tex]A_{t}=[/tex] 45

Mr Jackson will need 45 square feet of material to build the planter.

Answer:

45 feet

Step-by-step explanation: A cube is a regular solid with six square faces.

Square is a quadrilateral with 4 right angles and 4 equal sides. So a cube is solid formed by 6 squares.

Perimeter is the sum of all the sides. For a square, perimeter is given by

P = 4s

Then, side of the bottom is

s = 3

Area of a square is

A = 9

The planter is a cube with 5 faces, because the top is open. Then, total area is

45

Mr Jackson will need 45 square feet of material to build the planter.

Answer:

y- intercept: 3

Step-by-step explanation:

m = (y-y')/(x-x')

y = mx + b     b: y intercept

m = (9 - -1) / (-3 -2) = 10 / -5 = -2

b = y - mx = -1 - (-2)*2 = -1 + 4 = 3

9514 1404 393

Answer:

  y = 3x + 4

Step-by-step explanation:

The given line is in the form ...

  y = mx + b

where m is the slope (3) and b is the y-intercept (-1).

The parallel line will have the same slope. The given point (0, 4) is the y-intercept, so the desired equation is ...

  y = 3x +4

Answer:

378,917.15

Step-by-step explanation:

Annual compound interest formula:

[tex]AV=PV(1+i)^n\\\\AV=135000(1+.035)^{30}\\\\135000*2.8067937047=378917.15[/tex]

Answer:

a

Step-by-step explanation:

to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's

Answer:

The time it will take is 8hours 45mins.

Step-by-step explanation:

Since y = –240x represents a submarine descent. We are looking for how long, that is the time, it will take for the submarine to make a descent of 2100. We know that y is the elevation, if it is descending it will be in the negative direction, making it -ve.

A descent of 2100 means y = –2100. Hence,

–2100 = –240x

x = –2100/–240 = 8.75hours = 8hours 45minutes. (0.75hours = 3/4hours = 3/4 x 60mins = 45mins).

Total no. of problems= x

No of questions answered correctly= 63

Percentage = 70%

A/q,

70/100*x= 63

x= 63*100/70

x= 90

There were 90 questions in the test.

Hope it helps you.

Answer:

B

Step-by-step explanation:

Using the method of cross- multiplication

A

7x = 252 ( divide both sides by 7 )

x = 36 ≠ 4

B

21x = 84 ( divide both sides by 21 )

x = 4

C

5x = 2 ( divide both sides by 5 )

x = 0.4 ≠ 4

D

5x = 200 ( divide both sides by 5 )

x = 80 ≠ 4

The proportion where x = 4 is B

Angles that are supplimentary to ∠1 are ∠4 and ∠2 as they form and angle which measures 180°.

A line is called a transvarsal line when it intersects two or more than two lines at two or more than two different points.When a transvalsal intersect two lines at two different points two pairs of alternate angle forms and if they are congruent to each other then the lines which are intersected by a transvarsal are parallel to each other.

We know two are supplimentary if their sum is 180° and we also know that when two lines intersect each other their adjacent angles supplimentary to each other.

∴ Angles that are supplimentary to ∠1 are, ∠4 and ∠2 meaning ∠1 and ∠4 together form a supplimentary angle and ∠1 and ∠2 together form a supplimentary angle.

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Answer:

s<11

Step-by-step explanation:

44>7+s+26

Switch sides:

7+s+26<44

Group like terms:

s+7+26<44

Add the numbers:7+26=33

s+33<44

Subtract 33 from both sides:

s+33-33<44-33

Simplify:

s<11

Answer:

answer is 7898tI don't know either thank very much for the points though

Answer:

B

Step-by-step explanation:

A number increased by 7 means, 7 was added to the number and the result is 15

Answer:

3x + x = 48

12 pages

Step-by-step explanation:

let the number of pages read by Joelle be represented by x

Joelle = x pages

Deirdre = 3x (since she reads 3 times as much pages as Joelle)

3x + x = 48

4x = 48

x = 12 pages

So Joelle reads 12 pages

Answer:

v= -3 and v= 11

Step-by-step explanation:

v^2 - 8v -33 = 0

v^2-11v+3v-33=0

v(v-11) +3(v-11)=0

(v+3)(v-11)=0

v+3=0          and          v-11=0

v=-3                              v=11

Answer:

-10x + y = 64

Step-by-step explanation:

hope it helps

Answer:

14

Step-by-step explanation:

Answer:

the answer is X = 14

Step-by-step explanation:

So you need to single out the X

You do this by doing the opposite of X,

right now X is being multiplied by 14

The opposite of Multiplaction is division

That means you divide X by 14

But dont forget, what you do one side you do to the other.

This means you also Divide 196 by 14

196 ÷ 14 = 14

meaning X = 14

Answer:

The number expected to be cheese are 42 Pizzas

Step-by-step explanation:

According to the information provided, the total choices of Pizza at a local pizza shop are as follows:

Pizza                Choice

Peperoni             11

Supreme              7

Cheese                6

Hawaiano            3

Total                    27

The total pizza sold were 189, out of which the number expected to be cheese will be calculated by dividing the total number of choices and multiplying it with the required type of pizza chosen. This is done as follows:

189 / 27 * 6 = 42 Cheese Pizza

Answer:

A,B,G

Step-by-step explanation:

Answer:

2 and 1/2

Step-by-step explanation:

(the first one)