What does the constant of proportionality represent?

a
The constant ratio of one variable quantity to another to which it is proportional (or the Unit Rate)
b
The value that says all of our ratios are equivalent
c
The number that tells us how fast something is moving
d
The relationship between two rates with no similar units

100 points please answer!!!!

20 now give brainly

if that is not it its -20

Answer:

Sample Response: Jason needs to substitute the value he found for x in the original equation. Then he needs to use order of operations to simplify. If the result is a true statement then Jason’s solution is correct.

Step-by-step explanation:

on edge 2021

Answer:

I would need to see the signs to show each discount to figure this one out.  Can you add it?

Step-by-step explanation:

Step-by-step explanation:

I used substitution method

-4x+5y=27

x-6y=-2

substitute x=-2+6y

I am again using : x-6y=-2

x(-2+6y)-6y=-2

-2+y=-2

y=-2÷2

y=-1

finding x:(substituting y=-1)

x-6y=-2

x-6(-1)=-2

x+6=-2

x=-2-6

x=-8

check:

-4x+5y=27

-4(-8)+5(-1)=27

32+-5=27

Answer:

16xb

Step-by-step explanation:

In algebra the numbers are multiplied with the numbers and the variables are multiplied with the variables.

In this question we would multiply x with b and 4 with 4 .

Multiplying x with b would give xb and 4 with 4 gives 16

So the answer will be 16xb

For example if you have 3x and 10 z the answer would be 30xz

Answer:

Solution in photo

Step-by-step explanation:

Answer:

The answer is ( 3 * 3.50 )w = 84

Explanation:

You first need to know how much he spends each week, which is 3.50 * 3.

Then, you need to find w in that equation by dividing that result from each side.

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

Z = (9, 10 ) and is in first quadrant

Step-by-step explanation:

The first quadrant is above the x- axis and right of the y- axis

Z is in this quadrant with coordinates Z(9, 10 )

Answer:

see explanation

Step-by-step explanation:

The area (A) of an equilateral triangle with side a is calculated as

A = [tex]\frac{a^2\sqrt{3} }{4}[/tex]

The graph represents a function because it passes the vertical line test thus the best option B.

The graph is "pictorial representation or diagram that represents data or value in an organized manner".

If "all vertical line intersect the curve at most once, then the curve represents function" is called vertical line test for function.

According to the question,

In this graph, for one value of x, the graph has one value for y.

Hence, the graph represents a function because it passes the vertical line test thus the best option B.

Learn more about graph here

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Answer:

Step-by-step explanation:

6

Answer:

6

Step-by-step explanation:

Answer:

[tex]\displaystyle m=7[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Point (0, 0)

Point (1, 7)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Answer:

15% of $20 is $3

So the price of his disc was reduced to $3

Step-by-step explanation:

Answer:

is (A).

Step-by-step explanation:

The answer is (A).

Answer:  [tex]f^{-1}(x) = -\sqrt{36-x^2}[/tex]

====================================================

Here are the steps to find the inverse

[tex]f(x) = \sqrt{36-x^2}\\\\y = \sqrt{36-x^2}\\\\x = \sqrt{36-y^2} \ \text{ swap x and y; solve for y}\\\\x^2 = 36-y^2\\\\x^2+y^2 = 36\\\\y^2 = 36-x^2\\\\y = \sqrt{36-x^2}\\\\f^{-1}(x) = \sqrt{36-x^2}\\\\[/tex]

Now this would be the answer if our original domain was [tex]0 \le x \le 6[/tex]

However, that's not the case and instead our domain is [tex]-6 \le x \le 0[/tex]

Reflecting any (x,y) point in this domain restriction, over the the line y = x, will have us land on a point with a negative y value. This is because the inverse will swap the x and y values.

Therefore, the inverse function must ultimately be negative.

Currently [tex]f^{-1}(x) = \sqrt{36-x^2}[/tex] is positive since the result of any square root is never negative.

To fix this, we stick a negative out front to get the final answer being [tex]f^{-1}(x) = -\sqrt{36-x^2}[/tex]

Answer:

2 ( 5 + 3 )

Step-by-step explanation:

Common factor

1 0 + 6 10y+6 2 ( 5 + 3 )

Answer:

2 (5y + 3)

Step-by-step explanation:

You can pull out a 2 from both terms to create

2 ( 5y + 3)

it can’t simplify any more

Answer:

it is a and b because you have to do step by step

Answer:

The correct range is thus;

(-6,-12,-9)

Step-by-step explanation:

Here, we want to get the range given the domain

we simply make a substitution of the domain in the equation so as to get the range

So let us substitute the value of the domain one after the other

f(3) is 3-9 = -6

f(-3) = -3-9 = -12

f(0) = 0-9 = -9

Answer:

22 FT

Step-by-step explanation:

14+15-8=22

Based on the area of the rectangle and the length of one side, the length of the other side is 8 units

The area of a rectangle is calculated as:

Area = Length x Width

The length is already given so the width is:

72 = 9 x Width

Width = 72 / 9

Width = 8 units

In conclusion, the other side length is 8 units.

Find out more about rectangular area at https://brainly.com/question/25292087.

Answer:

The length of other side of rectangle is 8 unit.

Step-by-step explanation:

Given :

To Find :

Using Formula :

[tex]\star{\small{\underline{\boxed{\sf{\purple{Area_{(Rectangle)} = l \times b}}}}}}[/tex]

Solution :

Substituting all the given values in the formula to find breadth of rectangle :

[tex]{\dashrightarrow{\sf{Area_{(Rectangle)} = l \times b}}}[/tex]

[tex]{\dashrightarrow{\sf{72= 9 \times b}}}[/tex]

[tex]{\dashrightarrow{\sf{b = 72\div 9}}}[/tex]

[tex]{\dashrightarrow{\sf{b = \dfrac{72}{9}}}}[/tex]

[tex]{\dashrightarrow{\sf{b = \cancel{\dfrac{72}{9}}}}}[/tex]

[tex]{\dashrightarrow{\sf{b = 8 \: unit}}}[/tex]

[tex]{\star{\underline{\boxed{\sf{\red{Breadth = 8 \: unit}}}}}}[/tex]

Hence, the other side length of rectangle is 8 unit.

[tex] \rule{300}{1.5}[/tex]

Answer: 8/x+5 - 6/x+9

               2/x-9  * 5/x-4

Step-by-step explanation: Multiply The numbers 3 * 5 =15    =(15√- +2)(4 * 12√- -1) then multiply the numbers 4 * 12=48  =(15√- +2)(48√- -1) then apply minus -plus rules +(-a)= -a    = 15 *48√-√- -15 *1 *√- +2 * 48√- -2 *1 then simplify =81√- -722

Answer: The Viking football team lost 4 games.

Step-by-step explanation: Since the Vikings WON 4/5 of their 20 games, you need to find the other 1/5. That means you need to find 1/5 of 20. Divide 20 and 5. The final answer is 4.

Answer:

solid boundary line: y = -1/2 x + 4

shaded area: y ≥ -1/2 x + 4   and    y < x+1

Step-by-step explanation:

solid boundary line pass (0,4) (2,3)

slope (m) = (3-4) / (2-0) = -1/2

y intercept (b) = 4

equation: y = mx + b        y = -1/2 x + 4

system: y ≥ -1/2 x + 4

dotted line: (0,1) (2,3)

m = (3-1) / (2-0) = 1

b = 1

equation: y = x + 1

system: y < x+1

Step-by-step explanation:

25+5

=30

plzzzz if it helps you then plzz give me brainliest

Answer:

1/3

Step-by-step explanation:

Answer:

3:1

Step-by-step explanation:

[tex]\frac{9}{3}[/tex] --> [tex]\frac{3}{1}[/tex] or simply 3:1

Answer:

A single pencil costs $0.85 and a single eraser costs $0.60

Answer: The cost of one eraser is $0.6

Step-by-step explanation:

When solving this problem, it's best to set up a system of equations. Let pencil = p and eraser = e.

p = $0.25 + e

8p = $6.80

Now, we can use the second equation to solve for p by dividing both sides by 8. 6.8/8 = 0.85. Therefore, p = $0.85.

Then, use the value of p to find e by plugging the value of p we just found back into the first equation we wrote. Doing so, we get $0.85 = $0.25 + e.   To solve for e, we must subtract 0.25 from both sides, giving use 0.85-0.25 = 0.6

Therefore e = $0.6, so the cost of one eraser is $0.6 or 60 cents.