1.When two variables are proportional which of the following is constant?
(1) their sum
(3) their product
(2) their ratio
(4) their difference

Answers

Answer 1

Answer:

Their Ratio

Step-by-step explanation:

You switched the numbers 2 and 3 btw

Answer 2

[tex]\boldsymbol{\left ( 2 \right )}[/tex] their ratio

A ratio indicates how many times one number contains another.

Two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio, which is called the coefficient of proportionality or proportionality constant.

When two variables are proportional, [tex]\boldsymbol{\left ( 2 \right )}[/tex] their ratio is constant.

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Related Questions

Alice spins a spinner and rolls a number cube labeled 1-6. the spinner and number cube are shown.
what is the probability that Alice's spinner will land on green and she will roll a 6?

Answers

Answer:

Step-by-step explanation:

first count up the numbers on the spinner and the die cut out the number till get the number but i will guess 2

What is the equation of the line that passes through the point (3, +2) and has a
slope of
2/3

Answers

Answer:

QUIT CHEATING  JK THE ANSWER IS  y = 2/3x + 3

Step-by-step explanation:

= 2/3(-3) + b       Solve for b

1= -6/3 + b

1 = -2 + b  

+2   +2

b = 3  

The equation will be   y = 2/3x + 3

the alpha recruitment agency is advertising a high-profile employer-paid job as vice president of it operations. the fee is 25% of the first month’s pay. if the job pays x dollars annually, express the agency’s fee algebraically. answer pls​

Answers

Answer:

0.25x

Step-by-step explanation:

got it right on cengage

Kevin, Luke and mat share £200 in the ratio 1:4:3 how much more money does Luke receive than Kevin

Answers

Answer:

£75

Step-by-step explanation:

sum the parts of the ratio, 1 + 4 + 3 = 8 parts

Divide the amount by 8 to find the value of one part of the ratio

£200 ÷ 8 = £25 ← value of 1 part of the ratio, then

4 parts = 4 × £25 = £100 ← Luke's share

Thus

£100 - £25 = £75

Luke receives £75 more than Kevin

HELP ME PLEASE!!
HELP ME ANSWER A AND B

Answers

Answer:

a) 4c+3b=11.67

   8c+b=12.89

b)One loaf of bread cost $2.09

  One can of soup costs $1.35

Step-by-step explanation:

Let c= can of soups    Let b= loaf of bread

a) To find the equation, you know that Khalil buys four cans of soup and 3 loafs of bread and 4 cans of soup for $11.67 so that means that the first equation will be 4c+3b=11.67. Then, you know that Khalil buys 8 cans of soup and one bread for $12.89. so the next equation will be 8c+b=12.89. This means the system of linear equations will be

4c+3b=11.67

8c+b=12.89

b) Use elimination to solve this. You want to make one variable from each equation the same so multiply 4c+3b=11.67 by 2. This will look like 2(4c+3b=11.67). Then simplify to get 8c+6b=23.34 and 8c+b=12.89. Because 8 and 8 are the same, you have to subtract the equations from each other making 5b=10.45. Simplify that and you get b= 2.09 so the one loaf of bread cost $2.09. Then  plug 2.09 into 8c+b=12.89. It will look like this 8c+2.09=12.89. Simplify that and you get 8c=10.8. Simplify that again and you will get 1.35 so a can of soup will costs $1.35

Therefore

a) 4c+3b=11.67

   8c+b=12.89

b) One loaf of bread cost $2.09

   One can of soup costs $1.35

HELP I NEED HELP ASAP

Answers

Answer:

what do you need help with what -??

Step-by-step explanation:

Write the slope intercept equation for line AB

Answers

Answer:

Y = 2

Step-by-step explanation:

The answer choices are in slope intercept form which is Y=mx+b. Since the slope is 0, there is no need for "mx" in the equation, so y= 2 where b is 2

Denise and Aaliyah had lunch at the mall. Aaliyah ordered three slices of pizza and two waters. Denise ordered two slices of pizza and three waters. Aaliyah's bill was $6.00, and Denise's bill was $5.25. What was the price of one slice of pizza? What was the price of one water?

Liana spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 shirts then how many of each kind did she buy?

Mr. Velazquez purchased two donuts and three cookies and is charged $3.30. Ashley purchases five donuts and two cookies for $4.95 at the same shop. Find the cost of one donut and one cookie.

Answers

Answer:

3x + 2y=6

2x + 3y= 5.25

1 pizza slice = $1.50

1 water = $ 0.75

Step-by-step explanation:

u can write the equations for the questions and use photo math for the rest.....hoped it helped....

bus driver drove from Philadelphia to Washington D.C. He drove the first 100 km in 2 hours, the next 55 km in 1 hour, and the final 75 km in 2 hours. What is the average speed of the bus throughout the trip?

Answers

Answer: I think it’s 46

Step-by-step explanation: Because you add up the miles he drove them divide them by how long he drove

Ex 55+75+100=230 then you divide that by 5 hours = 46 per hour

x/4 = 1/3 what is x?

Answers

Step-by-step explanation:

Given

[tex] \frac{x}{4} = \frac{1}{3} \\ cross \: multiply \\ 3x = 4 \\ x = \frac{4}{3} [/tex]

Hope it will help :)

Answer:

1/3×4 = 1, 3

x is 1,3

Step-by-step explanation:

hope this helps!

whats the answer to 5+6x=2-7

Answers

Answer:

x= -5/3

Step-by-step explanation:

hope this helps :) have a nice day !!

Joshua works in a department store selling clothing. He makes a guaranteed salary of

$350 per week, but is paid a commision on top of his base salary equal to 5% of his

total sales for the week. How much would Joshua make in a week in which he made

$775 in sales? How much would Joshua make in a week if he made x dollars in sales?

Answers

Answer:

contesta la pregunta tú sólo déjame en paz

you add all of them then divide

16
| 27
Find the exact value of z.

Answers

a² + b² = c²

First find out the length of the line in the middle. We know that a² + 16² = 27², which means a = √473

Now write out all the equations for all the right triangles in the diagram.

Let the side of the base of the triangle be x and the remaining sides of z be y.

x² + 27² = (16+ y)²

y² + (√473)² = x²

From here solve and find y. Once you get y, y + 16 is your z, the answer.

Find the x- and y-intercepts of the graph of x– 10y = 31. State your answers as
whole numbers or as improper fractions in simplest form.

Answers

Answer:

x -intercept (31,0)

y-intercept (0,-31/10)

Step-by-step explanation:

x-10y=31

x-10(0)=31

x=31

x-10y=31

0-10y=31

-10y=31

y=-31/10

For the following expression, combine like terms and write an equivalent expression with fewer terms.

3x+5x−1

Answers

Answer:

8x - 1

Step-by-step explanation:

3x +5x - 1

8x - 1

This is correct

Answer:

8x-1

PLZ MARK AS BRAINLIEST

Step-by-step explanation:

3x+5x−1 =

(3x+5x)-1 =

8x-1

PLS PLS PLS PLS help

Answers

Im on that to, maybe i can help you !! :)

Find the unit rate $1.25 for 5 gumballs

Answers

Answer:

it's about 25 cents per gumball and alltogether thet would be 1.25 for five gumballs hope this helps:)

Step-by-step explanation:

HELP DUE IN 20 MINS!
What is the Scale Factor? Use a fraction in simplest form to represent your answer.

Scale Factor:

Answers

Answer:

5/4

Step-by-step explanation:

Scale factor is the ratio of corresponding sides

15/12 = 5/410/8 = 5/47.5/6 = 5/4

Answer:

5/4

Step-by-step explanation:

7.5/6=1.25

15/12=1.25

10/8=1.25

1.25 is basically 5/4 in a fraction

So 5/4

Rememeber that the Scale factor is the ratio of correspondind sides

Daqui a 5 anos karina terá 37 anos. usando a letra X, escreva uma equação que permita calcular a idade que karina tem hoje. Me ajuda pfvrr​

Answers

Answer:

x + 5 = 37

Step-by-step explanation:

Hoje tem x anos.

Daqui a 5 anos será 5 anos mais velha. A sua idade será x + 5 anos.

Daqui a 5 anos, a sua idade será 37 anos.

x + 5 = 37

The ratio of yellow sweets to purple sweets is 5:4.

Alice eats 3 purple sweets and the ratio is now 5:3.

Work out how many sweets there were at the beginning.

Answers

Answer:

27

Step-by-step explanation:

The ratio of yellow : purple = 5 : 4 = 5x : 4x ( x is a multiplier )

After Alice eats 3 purple sweets, then ratio is

5 : 3 = 5x : 4x - 3

Express the ratio in fractional form, that is

[tex]\frac{5}{3}[/tex] = [tex]\frac{5x}{4x-3}[/tex] ( cross- multiply )

5(4x - 3) = 15x

20x - 15 = 15x ( subtract 15x from both sides )

5x - 15 = 0 ( add 15 to both sides )

5x = 15 ( divide both sides by 5 )

x = 3

Then

number of sweets at beginning = 5x + 4x = 9x = 9(3) = 27

Could yall help me PLEASE
estimate the circumference of a quarter whose diameter measures 1.205 inches.
7.6 in.
1.9 in.
2.4 in.
3,6 in.

Answers

Answer: 3.6

Step-by-step explanation:

(Not the best at math but I am an above level student)

C= pi x diameter

C= pi x 1.205

C= 3.7

What is the value of Q?

Answers

Answer:

52 degrees

Step-by-step explanation:

Biologists estimate deer populations by sampling a small area and using that information to estimate the entire
population of a large area. They use the equation p= na to estimate p, the population of deer in a acres of land, where
n is the number of deer per acre determined from the sampling. A biologist determines that 1,800 deer populate an area
of 150 acres. What value of n did the biologist find in the initial sampling of the population?
12
B 83
1,650
270,000

Answers

12 is the correct answer!p (population) = n (number of deer per acre) a (number of acres)1,800 deer in 150 acres:1,800 ÷ 150 = 12 deer per acreThere were 12 deer in the acre the biologist sampled.Please let me know if I am wrong.

Write the equation of the parabola graphed below given the y-intercept is (0, 1)

Brainliest gets 45 points so please help ASAP

Answers

Answer:

y = -3/8(x - 4)² + 7 or y = -3/8x² + 6x + 1

Step-by-step explanation:

We can see on the graph that the vertex is (4, 7) and the leading coefficient is negative as parabola opens down.

The vertex form is:

y = a(x - h)² + k, substitute coordinates to get,y = a(x - 4)² + 7

Considering the y-intercept is (0, 1), substitute values to find the value of a:

1 = a(0 - 4)² + 7a(4²) = 1 - 716a = -6a = -6/16a = -8/3

The function is:

y = -3/8(x - 4)² + 7

In standard form:

y = -3/8(x² - 16x + 16) + 7 = -3/8x² + 6x - 6 + 7 = -3/8x² + 6x + 1

can someone tell me if its proportional and why?And also where to put the points for both graphs (I NEED AS SOON AS POSSIBLE PLEASE AND DO THEM RIGHT PLSSS!!) thanks besties!!!!

Answers

Answer:

I think your trying to ask what the answer is and it would be B.

Step-by-step explanation:

Put in the X column: 0 1 2

Put in the Y column: 0 5 10

If it asks for how you know, put that it’s basically multiplying by 5s.

15. Two angles are supplementary. One
angle is 8 times larger than the other.
Find the measure of the two angles.

Answers

Answer:

82 and 98 degrees.

Step-by-step

Supplementary angles are equal to 180 degrees. Let's assume both are 90 degrees for both angles. You would then do the following:

90-8= (for angle 1)

90+8= (for angle 2)

Getting 82 and 98 degrees.

What is constant proportionality

Answers

Answer:

The constant of proportionality is the ratio between two directly proportional quantities.

Step-by-step explanation:


1. Make your own example in describing the two parts of a measurement:
Nonstandard units of
of measurement and Standard units of
measurement.​​

Answers

Step-by-step explanation:

standard unit of measurement : it is typically used within each measurement system such as inches , feet , kilograms etc.

non standard unit of measurement : it is a type of measurement used by our own body parts to measure

Line p passes through point (0,8) and is perpendicular to the graph of y=1/4x+2 line q parallel to line p and passes through point (-3,6) which is the equation of line q in slope intercept form

A. Y=1/4x+6
B. Y=-1/4x+8
C. Y= 4x-8
D. -4x-6

Answers

The answer is A bro trust ,e

A cuboid is 12 cm broad and 10 cm high. If its volume is 1800 cm³, find its length.​

Answers

Answer:

it's length is 15cm

Step-by-step explanation:

let a represent the length

a × 10 ×12 = 1800

a×120= 1800

a = 1800÷12

a=15cm

1800=L×h×b

1800=L×10×12

1800=120L

L=1800/120

L=15cm ans..

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