yvaries directly as x

and y=30 when x=5,find

a) K b) equation

need help po i need it right now po complete answer po​

Answers

Answer 1
x=6 because 30/6=5 so just divide

Related Questions

10 is the geometric mean between 23 and what other value? Round your answer to the tenths' place.

Answers

10 is the geometric mean between 23 and 4.35.

What is geometric mean?

The geometric mean is a type of average,  generally used for growth rates. Let c is the geometric mean of a and b, then c=[tex]\sqrt{ab}[/tex].

Given that,

The geometric mean of 23 and other value is 10.

Let the other value is x.

Use the geometric mean property,

G.M.=[tex]\sqrt{ab}[/tex]        (1)

Substitute the given values in equation (1)

10=[tex]\sqrt{23x}[/tex]

⇒x=100/23

⇒x=4.347

The geometric mean of 23 and 4.35 is 10.

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The vertices of a figure are J(-4,1), K(-2,1), and L(-4,-3). Rotate the figure 90° clockwise about the origin. Find
the coordinates of the image.

ill add a graph if needed !! :)

Answers

The coordinates of figure and the coordinates of the image after rotation is as below

preimage        image

J(-4,1)               J' (1, 4)

K(-2,1)              K' (1, 2)

L(-4,-3)             L' (-3, 4)

What is rotation ?

Rotation is one the movements involve in transformation

In rotation, the objects moves about an axis in a circular direction

The transformation rule for 90 degrees clockwise rotation is

(x, y) → (y -x)

applying the rule gives the new coordinates of the image as

Image

J' (1, 4)

K' (1, 2)

L' (-3, 4)

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Select all triangles congruent to triangle 4.

Answers

Answer:

  1, 2, 4, 5

Step-by-step explanation:

You want triangles congruent to triangle 4.

Congruence

In this exercise, we can determine congruence using SSS congruence: the lengths of the sides in congruent triangles will match. (The order of appearance of the side lengths as you go around the triangle is irrelevant.)

Triangle 4

The lengths of the sides are ...

diagonal of 4×2 rectangle5 grid squaresdiagonal of 4×3 rectangle

Looking at the other triangles, we see side lengths of ...

Triangle 1

All side lengths match: congruent to 4.

Triangle 2

All side lengths match: congruent to 4.

Triangle 3

One side is 6 grid squares: not congruent.

Triangle 5

All side lengths match: congruent to 4.

Triangle 6

One side is 6 grid squares: not congruent.

Triangle 7

One side is the diagonal of a 3×2 rectangle: not congruent.

Triangle 8

One side is the diagonal of a 4×1 rectangle: not congruent.

__

Additional comment

Triangles 3 and 6 are congruent to each other, but not to triangle 4.

9. If XYZ LMN, what is the length of XZ?

Answers

The two triangles are congruent.

So, their corresponding sides will be equal.

So, 2x+5 = 5x-19

3x = 24

x = 8 cm.

So, XZ = 2*8+5 = 21 cm

I need help please!!

Answers

the slope of the given point is m=2/17

What is the slope of the line

Answers

Answer:

The answer to this question is undefined or c

Step-by-step explanation:

A horizontal line has a slope of 0 because it does not go vertically and a vertical line has a slope of undefined because it does not go horizontally

y=mx+b is how to get slope, it’s infinite

Gary and Kathy's restaurant bill comes to $35.50. They are planning to tip the waiter 20%. How much money will they pay including the tip?

Answers

Answer: $42.60

Step-by-step explanation:

divide $35.50 by 5 and then add the quotient ---> $7.10, to $35.50, which equals $42.60.

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 4. If there were 8085 total votes, how many no
votes were there?

Answers

There are 2940 no votes.

From the question, we have

there were 8085 total votes

ratio= 7 :4

No votes = 4/11*8085

=2940

Divide:

Divide, in its simplest form, means to divide into two or more equivalent portions, spaces, groups, or divisions. Divide, in plain English, means to provide the entire thing to a group in equal portions or to divide it into equal pieces. Let's say a square is divided into two triangles with equal areas by a diagonal. A division operation may or may not provide an integer as the outcome. The outcome may occasionally take the form of decimal numbers.

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find the salary of a person who is paid $3,800.00 per month

Answers

Answer:45600

Step-by-step explanation: 3800x12

The pharmacists milkweed concoction didn’t work. It only gave the queen split ends. However, the queen, in a rare kind hearted moment, agreed to let the pharmacist try again. This time he has decided to combine a mixture 50% sorghum with a mixture containing 75% sorghum to create a 10 ounce mixture containing 60% sorghum. How many ounces of the 50% mixture should the pharmacist use?

Answers

The ounces of the 50% mixture that the pharmacist should use is 6 ounce.

How to calculate the ounces?

From the information, we need two equations to solve this problem.

equation 1:

x + y = 10

equation 2:

.5x + .75y = 10(.6)

set y = 10 - x

.5x + .75(10-x) = 6

.5x + 7.5 - .75x = 6

.5x -.75x = 6 - 7.5

-.25x = -1.5

Divide

x = -1.5/-.25

x = 6

Therefore, 6 ounce of the 50% sorghum are required.

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Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs ...

Answers

a) The hypothesis are given as follows:

Null: [tex]H_0: \mu_d \leq 0[/tex]Alternative: [tex]H_1: \mu_d > 0[/tex]

b) The significance level is of α = 0.1.

c) The test statistic is of: t = 4.86.

d) The p-value is of: 0.

What are the hypothesis tested?

At the null hypothesis, it is tested if there is not enough evidence that the mean level is greater at the bottom of the surface, that is, if the mean is not positive, hence:

[tex]H_0: \mu_d \leq 0[/tex]

At the alternative hypothesis, it is tested if there is enough evidence that the mean level is greater at the bottom of the surface, that is, if the mean is positive, hence:

[tex]H_1: \mu_d > 0[/tex]

As stated in the problem, the significance level is of:

α = 0.1.

How to calculate the test statistic?


The test statistic is calculated by the formula presented as follows:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

The variables of this formula are listed as follows:

[tex]\overline{x}[/tex] is the sample mean.[tex]\mu[/tex] is the value tested at the null and at the alternative hypothesis.s is the standard deviation of the sample.n is the sample size.

From the table, the sample is composed by the differences and given as follows:

0.015, 0.028, 0.177, 0.121, 0.102, 0.107, 0.019, 0.066, 0.058, 0.121.

The above sample is inserted into a calculator, to obtain the parameter values given as follows:

[tex]\overline{x} = 0.0814, \mu = 0, s = 0.053, n = 10[/tex]

Hence the numeric value of the test statistic is given as follows:

t = (0.0814 - 0)/(0.053/sqrt(10))

t = 4.86.

What is the p-value?

Using a t-distribution calculator, considering a right-tailed test, as we are testing if the mean is greater than a value, with 10 - 1 = 9 df and t = 4.86, the p-value is of 0.

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Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.

Answers

Answer:

  A, B, E

Step-by-step explanation:

You want three true statements describing the circle whose equation is ...

  x² + y² – 2x – 8 = 0

Graph

A graphing calculator can plot this equation for you. The result is attached.

We see that ...

The radius of the circle is 3 units.The center of the circle lies on the x-axis.The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.

__

Additional comment

The standard form equation of a circle is ...

  (x -h)² +(y -k)² = r² . . . . . center (h, k), radius r

Rearranging the given equation to this form, we have ...

  (x -1)² +y² = 8 +1 = 9 . . . . . . . . r²=9 ⇒ r=3

This means the center is (1, 0), and the radius is 3. The point (1, 0) is on the x-axis.

The circle with equation x² + y² = 9 is centered at the origin and has radius 3.

Sarah used 2. 5 cups of cheese in a dish that serves 10 people. Amyn used 1. 6 cups of cheese in a dish that serves 8 people. How much more cheese is in one serving of sarah’s dish?.

Answers

Answer: In one serving of Sarah's dish 0.05 more cheese than in one serving of Amyn's dish.

Given: Sarah used cups of cheese in a dish that serves people and  Amyn used cups of cheese in a dish that serves people.

Now, the amount of cheese served by Sarah for a people is.

And the amount of cheese served by Amyn for a people is

Therefore, the difference between the amount of cheese served by Sarah and Amyn is calculated as

Cheese served by Sarah's in one serving  cheese served by Amyn's in one serving              

Hence, 0.05 more cheese is in one serving of Sarah's dish.

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Step-by-step explanation:

Which expression is equal to 14y−17+512y+6 , expressed in simplest form?

Answers

Answer:

526y-11

Step-by-step explanation:

14y-17+512y+6=526y-11

Answer:

Option (C)

Step-by-step explanation:

To simplify an expression, we can combine like terms. For this expression, there are two pairs of like terms, one-fourth y and five-twelfths y, and the constants negative seventeen and six.

To combine the fractions, we can find the least common denominator, twelve, so we can rewrite the fraction as three-twelfths.

Now combine the like terms to get eight-twelfths y minus eleven, which simplifies to two-thirds y minus eleven.

Possible values for the area A of the rectangle shown are 12 ≤ A ≤ 36.
The rectangle sides are 2x+1 and 3
A compound inequality for this situation is 12 ≤
Choose...
≤ 36.
The solution to the compound inequality in Part A is
≤ x ≤
.

Answers

The compound inequality is 12 ≤ 6x + 3 ≤ 36. and the solution is 1.5  ≤ x ≤ 5.5

How to determine the compound inequality?

The compound inequality is represented as

12 ≤ A ≤ 36.

Such that

A represents the area of the rectangleThe sides of the rectangle are 2x+1 and 3

The area of the rectangle is calculated as

A = Product of the sides

So, we have the following representation

A = (2x + 1) * 3

Evaluate

A = 6x + 3

Substitute A = 6x + 3 in 12 ≤ A ≤ 36.

So, we have

12 ≤ 6x + 3 ≤ 36.

The solution to the inequality

In (a), we have

12 ≤ 6x + 3 ≤ 36

This gives

9 ≤ 6x ≤ 33

Divide by 6

1.5  ≤ x ≤ 5.5

So, the result is 1.5  ≤ x ≤ 5.5

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Write each as an algebraic expression.

10) the product of 10 and a number n

12) the difference of 19 and a number n

14) The product of 7 and the sum of × and 2

15) The difference of 11 and the quotient of x and 3

11) the sum of a number n and 5

13) a number n squared

Answers

Answer:

10) 10n

12) 19-n

14) 7(x+2)

15) x/3 -11

11) n+5

13) n^2

Step-by-step explanation:

product = multiply

difference= subtract

sum = add

quotient = divide

Answer:

lo siento soy nuevo en este aplicación ay mis sierras disculpas

The amount of chlorine needed to treat a wimming
pool i directly proportional to the volume of the pool

Answers

The constant of proportionality for the relationship is 0.002.

We are provided that amount of chlorine needed is directly proportional to the volume of the pool .

So we can formulate the relation as

C = kV ... (1)                   ( where  C = amount of chlorine ,

                                              k = constant of proportionality

                                              V = volume of the pool  )

the sample ratio of chlorine to the the volume of pool , we have :

5 : 2500

10 : 5000

15 : 7500

So taking the first sample value and putting it in eqn (1)

we get

5 = k (2500)

therefore,

k = 5/ 2500

k = 0.002

So the constant of proportionality will be 0.002

Similarly if we take the other values also the constant of proportionality will remain the same.

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Please help me out don’t answer if you don’t know I would really appreciate it ;)

What is the simplified version of each expression? Assume all variables are positive

Answers

Answer:

A) 3

B) 2[tex]\sqrt{6}[/tex]

C) 3[tex]\sqrt{2}[/tex]

Step-by-step explanation:

A

3x3 = 9

B

24 = 2x2x2x3  We can pull out a pair of 2 and are left with 6

C

18 = 2x3x3  We can pull out a pair of 3 and are left with 2

Jerry has 4 1/2 cup of strawberry he use 3/4 cup of a strawberry to make a breakfast smoothie he wants to use the remaining strawberry to make pancakes if he takes 1 1/4 cup of strawberries to make one pancake how many pancake can he make.

Answers

Jerry will able to make 3 pancakes if he has 4 1/2 cup of strawberry from which he make use of 3/4 strawberry to make breakfast smoothie and he need 1 1/4 cup of strawberries to make one pancake.

Total strawberry Jerry has = 4 1/2 cup = 9/2 cups

Strawberry used to make smoothies = 3/4 cup

Remaining strawberries

= 9/2 - 3/4

= (18-3)/4 = 15/4

To make one pancake, Jerry needs = 1 1/4 cup = 5/4 cup

Number of pancakes Jerry can make = 15/4/5/4 = 3 pancakes

Hence, the number of pancakes, Jerry can make is 3

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A group consisting of 42 aggressive zombies triples in size every hour. Which equation matches the number of zombies after 2 hours?

Answers

The equation that matches the number of zombies after 2 hours is z = 42 × 3².

What is an equation?

An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.

In this case, a group consisting of 42 aggressive zombies triples in size every hour.

Let the number of zombies be z.

Therefore, the equation that matches the number of zombies after 2 hours will be:

= 42 × 3^n

= 42 × 3²

= 42 × 9

= 378 zombies

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if f(x)=-3x+9, find the value of 3f (2)-2f(0)
im gonna cry some1 pls help me

Answers

f(2)= -3(2)+9 = 3
f(0)= -3(0)+9 = 9

3f(2)-2f(0)
= 3(3)-2(9)
= -9

An arts and crafts store sells sheets of stickers. Use the table to write an equation you can use to find the total cost y in dollars for x sheets of stickers.​

Answers

The equation that can be use to find the total cost y in dollars for x sheets of sticker is y = 2.55x.

What is an equation?

An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.

In this case, it should be noted that a proportional relationship exist between the figures that are given.

Therefore, the constant will be:

= Cost / Number of sheet

= 12.75 / 5

= 2.55

Therefore, the equation is y = 2.55x

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An Olympic sized swimming pool consists of 660,000 gallons of water. It is currently be drained at a rate of 2,000 gallons a second. Write an equation in slope-intercept form to model this relationship.

Answers

The equation in slope intercept form to model the relationship is:

y = 660,000x+2000

Given,

An Olympic sized swimming pool consists of 660,000 gallons of water.

It is currently be drained at a rate of 2,000 gallons a second.

we are asked to determine the equation in slope intercept form = ?

we know the slope intercept form is:

y = mx+c

based on the given conditions, we formulate:

y = 660,000x + 2000

Hence we get the required answer.

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wallpaper is sold on rolls that are 27 inches wide. Tazio needs to cover a wall that is 80 square feet. To figure out how many feet of wallpaper to buy, she will divide 80 by the width of the wallpaper roll in feet. how wide is the roll in feet?
please help asap tysm<3

Answers

The length of the wallpaper of 27 inches wide required is  35.56 feet

How to determine the length of the wallpaper required

The problem requires conversion of the dimensions to have similar unit

To convert 80 square feet to square inches. we multiply by 144

80 * 144 = 11520 square inches

area = length * wide

11520 = length * 27

length = 11520 / 27

length = 426.667 feet

to get the length in inches we divide the unit in feet by 12

length = 426.667 inches / 12

length = 35.56 feet

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Identify the vertical asymptotes and horizontal asymptote of each.

Answers

Vertical asymptotes is x = -4 and horizontal asymptote is y = 1

What is an Asymptote?

An asymptote is a line that a curve approaches but never touches. A line where the graph of a function converges is known as an asymptote.

There are 3 types of asymptotes.

Horizontal asymptote (HA) - It is a horizontal line and hence its equation is of the form y = k.Vertical asymptote (VA) - It is a vertical line and hence its equation is of the form x = k.Slanting asymptote (Oblique asymptote) - It is a slanting line and hence its equation is of the form y = mx + b.

The given expression,

f(x) = (x² - 3x) / (x² + x - 12)

First, find Horizontal asymptote

so,

Horizontal asymptote (y) = (leading coefficient of numerator) / (leading coefficient of denominator)

leading coefficient of numerator = 1

leading coefficient of denominator = 1

y = 1/1

y =1 (Horizontal asymptote)

Now, find Vertical asymptote

so, let's simplify the expression f(x) = (x² - 3x) / (x + x - 12)

f(x) = (x(x - 3) ) / (x² + 4x - 3x - 12)

f(x) = (x(x - 3) ) / (x(x + 4) - 3 (x + 4) )

f(x) = (x(x - 3) ) / ( (x -3) (x + 4) )

f(x) = x / (x + 4)

Now, put the denominator = 0

x + 4 = 0

x = -4 ( Vertical asymptote )

Hence, Vertical asymptotes is x = -4 and horizontal asymptote is y = 1

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What did the king krum call the royal math and science teacher

Answers

Answer: HISFAVORITESUBJECTS

Step-by-step explanation:

help please and thankyou 3

Answers

The trigonometric function use to solve the angle x in the right triangles are as follows:

sin x = 6 / 10cos x  = 5 / 10tan x = 4 / 6

How to find the angles of a right triangle?

A right angle triangle is a triangle that has one of its angles as 90 degrees.  The side and angles of a right angle triangle can be found using trigonometric ratios.

Therefore, the trigonometric function that can be use to find the angle x in the triangles are as follows:

Triangle PNM

sin x = opposite / hypotenuse

sin x = 6 / 10

sin x = 3 / 5

Triangle ABC

cos x = adjacent / hypotenuse

cos x = 5 / 10

cos x = 1 / 2

Triangle DEF

tan x = opposite / adjacent

tan x = 4 / 6

tan x = 2 / 3

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Jada has 12 library books checked out and Han has 13less than that. How many books does Han have checked out?

Answers

Answer:

-1

Step-by-step explanation:

Jada = 12 books

Han = 13 less books than Jada

12-13= -1

Han would have negative 1 books but in this situation it would not be possible.

(ITS DUE TODAY)Find the slope of the line that passes through Point A (3,-7) and Point B (0,-3), using the formula m= y2-y1/x2-x1.

Answers

Answer:
The Slope is = -4/3

−2 1/4×(−1 1/3)[tex]−2 1/4×(−1 1/3)[/tex]

Answers

The value after multiplying the given mixed fractions is 7/6   .

In the question ,

it is given that ,

the two mixed fraction are given as [tex]-2\frac{1}{4}[/tex]  and [tex]-1\frac{1}{3}[/tex]  ,

we need to find their value after multiplication .

we first convert the mixed fractions into improper fraction ,

So ,

[tex]-2\frac{1}{4}[/tex] = (-2×4+1)/4 = (-8+1)/4 = -7/4

and

[tex]-1\frac{1}{3}[/tex] = (-1×3+1)/3 = (-3+1)/3 = -2/3

So , the product of -7/4 and -2/3 is written as

= -7/4 × -2/3

= (-7 × -2)/(4 × 3)

= 14/12

after simplifying ,

= 7/6

Therefore , The value after multiplying the given mixed fractions is 7/6   .

The given question is incomplete , the complete question is

Find the value after multiplying the given mixed fraction [tex]-2\frac{1}{4} \times -1\frac{1}{3}[/tex]   .

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