Mathematics High School

NEED HELP MARK Brainliest????

Answers

Answer 1

Answer: 1:3 is the constant proptortionality.

Answer 2

Answer:

Step-by-step explanation:

If y is directly proportional to x

y = kx

k is the constant of proportionality

k = y/x

From the allocated point

y = 3 and x = 1

k = 3/1 = 3

Related Questions

Landon and his children went into a bakery and will buy donuts and brownies. Each donut costs $1 and each brownie costs $3. Landon has a total of $15 to spend on donuts and brownies. Write an inequality that would represent the possible values for the number of donuts purchased, dd, and the number of brownies purchased, b.b.

Answers

Answer:

she could by 3 brownies BB and 6 donuts DD

Step-by-step explanation:

369 so that be 3 BB and then the donuts are 1$ so 10 11 12 13 14 15

1 2 3 1 2 3 4 5 6

evaluate the following equations for the given value.

1. y=4x+1 when, x=0

2.y=x-3 when x= -6

3.y=7x-44,when x=5

Answers

Answer:

It's 555-2y=3x for 1.

2. 4x=334-6

3. 5*2333x-4y3=1

Step-by-step explanation:

1. y=1, 2. y=-9, 3. y=-9

Pls help me

This was my 6th question
It is really hard

Answers

Answer:

It’s 6x-4y=40

Answer:

it's c

Step-by-step explanation:

evaluate b(x)=18-0.5x when x= -2,0, and 5.

Answers

Answer:

19, 18, 15.5

Step-by-step explanation:

b(-2) =

18 - 0.5(-2)

18 - (-1)

b(x) = 19

b(0) =

18 - 0.5(0)

18 - 0 =

b(x) = 18

b(5) =

18 - 0.5(5)

18 - 2.5

b(x) = 15.5

Find the inverse g(x) of f(x) = 3x - 2.

Answers

Answer:no

Step-by-step explanation:

How do you find the inverse of a set order of pairs

Answers

Answer:

The inverse of a function is the set of ordered pairs obtained by interchanging the first and second elements of each pair in the original function. In plain English, finding an inverse is simply the swapping of the x and y coordinates.

Step-by-step explanation:

The inverse of a function is the set of order pairs obtained be interchanging the first and second elements of each pair in the original function. In plain English, finding an inverse is simply the swapping of the x and y coordinates. The

Question 7 (1 point)
An item on the sale rack at a local supermarket was marked $3.42. The original price of the item was $4.75.
What was the percent of the discount?

Answers

Answer:

: Marked price of dinner set = $480. Discount = 18% of $480 = 0.18 × 480 = $86.40.

| Must include: 7Step-by-step explanation:

Answer:

Step-by-step explanation:

The real answer would 28%

A pair of earrings costs $50. Kohl’s is having a 15% off sale. How much will the customer save? PLSSSS HELP ME ILL GIVE BRAINLY TO WHO HELP ME PLS ITS URGENT!!!!!

Answers

Answer:

customer saves $7.50

Step-by-step explanation:

10% = $5

5%= $2.50

therefore 15% = $7.50

Answer:

the customer saves $7.50

Step-by-step explanation:

Trust me its right :)

How can you figure out the next number in the pattern below

Answers

Answer:

Step-by-step explanation: 29-1=28 28-2=26 26-3=23 23-4=19 19-5=14

i hope that helps

help me pleaseeee because i don’t understand at all.

Answers

Answer:

Step-by-step explanation:

can this problem be solved?

Answers

Answer:

The discriminant is -23

The equation has 0 real solution

Step-by-step explanation:

The discriminant of the quadratic equation ax² + b x + c = 0 is Δ = b² - 4ac

If Δ > 0, then the equation has two different real solutionsIf Δ = 0, then the equation has one real solutionIf Δ < 0, then the equation has no real solutions

Let us use the rule above to solve the question

∵ x² - x + 6 = 0

∴ a = 1, b = -1 and c = 6

∵ Δ = b² - 4ac

∴ Δ = (-1)² - 4(1)(6)

∴ Δ = 1 - 24

∴ Δ = -23

∴ The discriminant is -23

∵ -23 < 0

∴ Δ < 0

∴ The equation has no real solutions

∴ The equation has 0 real solution

least to greatest 4/5,-1.4, 0.75, -21/3,21%

Answers

Answer: -1.4, -21/3, 4/5, 21%

Step-by-step explanation:

I really need help lol

Answers

D

Think of sqrt(7) as x and sqrt(6) as y and substitute you get

5x + 12y - 10x - 5y

Combining gives

7y - 5x

sub original values back in and you get

7sqrt(7) - 5sqrt(6)

I reallly need help

Plllllllsssssssss........

Answers

Step-by-step explanation:

answer is b

6x-18y=198

the answer is b .....

Solve the following 9 bananas cost $0.99. At this rate, how much do 5 bananas
cost?

Answers

Answer:

5 bananas cost $ .55

Step-by-step explanation:

9x = .99

divide by 9, each banana is $.11

multiply by 5 to get cost.

The answer is 4.95$

Please help I’m really stuck

Answers

They are perpendicular if you put points (2,1) and (7,4) into x1 y1 you will find the slope of u which is 3/5. 3/5 is the opposite reciprocal of -5/3 proving that the lines are perpendicular! Enjoy

-23-x=x-5 one solution infinite solution or no solution?

Answers

Answer:

one solution

Step-by-step explanation:

-2x=18

x=-9

54x + 15 = -3 (3y + 1)
I need help finding the equation for y

Answers

Answer: y = -6x - 2

Step-by-step explanation:

54x + 15 = -3(3y + 1) To solve for y distribute on the right side to get,

54x + 15 = -9y -3 Add 3 to both sides

+3 +3

54x + 18 = -9y Divide each term by -9 on each side.

y = -6x - 2

Answer______

54x + 15 = -3 (3y + 1)

54x + 15 = -9y -3

+3 +3

54x + 18 = -9y

y = -6x - 2

what is the greatest common factor of 13 and 39 please help quick

Answers

Answer:

Step-by-step explanation:

Answer:13 is the greatest common factor

Step-by-step explanation:

original price: $20.00. It was marked up 25%. What is the new selling price?

Answers

Answer:

$25

Step-by-step explanation

Multiply $20 by 0.25 (which is 25% as a decimal)

$20 x 0.25 = $5

Add $5 to $20 which makes the answer $25

What is (-1,2) rotated 90 degrees clockwise

Answers

Answer: 2, 1

Step-by-step explanation:

Whenever you rotate a point on a graph 90 degrees you go from (x,y) to (y,-x)

so -1, 2 goes to 2, 1

Combine these radicals!

Answers

Answer:

-4√5

Step-by-step explanation:

-√ 5 can be written as -1√ 5.

from there it is simple subtraction of the radicles

-1-3=-4 therefore, -1√ 5 - 3√ 5=- 4√ 5

what is 64.44 rounded to the nearest one?

Answers

Answer:

64.4

Step-by-step explanation:

Because the nearest one is the 4 in 0.4 and 4 isn't enough to make it a 5

Darlene purchases 20,000 worth of stock on her brokers advice and pays her broker a 1.5% broker fee darlene purchases 20,000 worth of stock on your brokers advice and pays her broker a 1.5% broker freeshe sells her stock when it increases to $28,600.02 years later and uses a discount broker who charges $21 per trade compute Darlenes net proceeds after the broker fees are taken out

Answers

Answer:

Darlene's net proceeds after the broker fees are taken out is $8,279.

Step-by-step explanation:

From the question, the following can be obtained:

Basic cost of purchase of the stock = $20,000

Broker fee related to purchase = Basic cost of purchase of the stock * 1.5% = $20,000 * 1.5% = 300

Total cost of purchase of the stock = Basic cost of purchase of the stock + Broker fee related to purchase = $20,000 + 300 = $20,300

Selling price = $28,600

Broker fees related sales = 21

The net proceed can therefore be calculated as follows:

Net proceeds = Selling price - Broker fees related sales - Total cost of purchase of the stock = $28,600 - $21 - $20,300 = $8,279

Therefore, Darlene's net proceeds after the broker fees are taken out is $8,279.

N the United States, the average public school teacher currently earns an annual salary near $55,202. Reported national average salaries for the last six decades are listed below. Year National Average Teachers' Salary 1960 $4,995 1970 $8,626 1980 $15,970 1990 $31,367 2000 $41,807 2010 $55,202 Determine the average salary increase per year between the years 1980 and 1990. $1,539.70 $8,367.80 $2,566.20 $1,004.10

Answers

Answer:

$1,539.70

Step-by-step explanation:

Given the data :

National average Teachers' salary (NATS)

YEAR:_1960 _ 1970 _ 1980 _ 1990 _ 2000 2010

NATS:4995_8626_15970_31367_41807_55202

AVEAGE SALARY INCREASE PER YEAR BETWEEN 1980 and 1990

Salary in 1980 = $15970

Salary in 1990 = $31367

Average salary increase per year:

Difference in salary / difference in years

$(31367 - 15970) / (1990 - 1980)

= $15397 / 10

= $1539.7

What is an equation of the line that passes through the points (-3, -1)(and (-4, -4)? Put your answer in fully reduced form.

Answers

Answer:

y=3x+8

Step-by-step explanation:

m=3

y-(-1)=3(x-(-3))

y+1=3x+9

y=3x+8

The equation of the line passes through the point (-3, -1)(and (-4, -4) is y=3x+8.

What is an equation of the line?

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that line passes through the points (-3, -1)(and (-4, -4)

The slope will be calculated as,

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Slope = ( -4 + 1 ) / ( -4 + 3 )

Slope = 3

The y-intercept is calculated as,

y = 3x + c

-1 = 3 x -3 + c

c = 8

The equation of the line will be,

y=3x+8

To know more about an equation of the line follow

https://brainly.com/question/18831322

#SPJ2

4.What is the area of a parallelogram with a base of 10 meters and a height of 5 meters?

Answers

Answer:

50m²

Step-by-step explanation:

10×5=50

The rate of change is $____ per year

Answers

Answer:

-6 is the rate of change per year

Step-by-step explanation:

The amount in dollars decrease by 6 every year.

It went from $27 to $21 to $15 and finally to $9.

Hope I helped you!!

T-Shirts R Us advertises shirts as shown below.

3 white shirts and 2 black shirts are 10 dollars per shirt.

Which quantities in the advertisement represent a unit rate?
3 white shirts to 2 black shirts
2 black shirts for every 5 shirts
$10 per shirt
$50 per shirt

Answers

Answer:

$10 per shirt

$50 per shirt

Step-by-step explanation:

A unit rate is price per some number of items. $ per shirt is a price for one item, thus these are unit rates.

Answer

$10 per shirt so C or 3

Step-by-step explanation:

Maria's fish tank has 16 liters of water in it. She plans to add 6 liters per minute until the tank has more than 64 liters. What are the possible numbers of minutes Maria could add water?

Answers

Answer:

8 minutes

Step-by-step explanation:

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