Given y varies inversely as x, and y = 5 when x = 9. Write the inverse function

Answers

Answer 1

Answer:

y = 45/x

Step-by-step explanation:

Given y varies inversely as x, then;

y = k/x

If y = 5 when x = 9

5 = k/9

k = 5*9

k = 45

Substitute into the formula above;

y = k/x

y = 45/x

Hence the required inverse function is y = 45/x


Related Questions

The theater sells two types of tickets: adult tickets for $7 and child tickets for $4. Last night, the theater sold a total of 76 tickets for a total of $469. How many adult tickets did the theater sell last night?

Answers

Answer:

55 tickets for adults

Step-by-step explanation:

Start by setting up two equations. One equation will be the total amount of money spent and the other is the total amount of tickets sold. a is the # of adult tickets and c is the # of children tickets sold.

7a+4c=469

a+c=76

Now solve for c in the second equation. Then use that to substitute for c in the first equation.

c=76-a

7a+4(76-a)=469

7a+ 304-4a =469

7a+4a=165

3a=165

a=165/3

a=55

A store that provides hedonic benefits will __________. [This question has been randomly selected from a pool of 3 questions. For optimal success in this class, repeat this chapter's questions until you are sure you are acquainted with all of the alternate versions of each question.] Group of answer choices have drive-through facilities emphasize efficiency in the check-out process encourage customers to shop as quickly as possible stock only essential products offer an entertaining and enjoyable shopping experienc

Answers

Answer:

offer an entertaining and enjoyable shopping experience.

Step-by-step explanation:

Hedonistic is a word in English language used to describe the pursuit of pleasure by an individual or group of people as the main activity of life. A hedonistic individual is typically devoted to seeking and having fun and pleasurable times in life.

Hence, a store that provides hedonic benefits will offer an entertaining and enjoyable shopping experience such as playing video games, swimming, viewing centers, playing music or karaoke, etc. The main purpose of hedonic benefits is to induce or enhance customer impulsiveness, as well as influencing their decision to stay longer in the shopping environment or store.

The points (-10,r) and (-6, 4) lie on a line with slope1/4 Find the missing coordinate r. ​

Answers

That's the answer

Just open it

Trevor's mom bought 3 gallons of fruit juice at the store how many fluid ounces of fruit juice did Trevor‘s mom buy?

Answers

Answer: 384 fluid ounces

Step-by-step explanation:

First and foremost, when converting gallons to ounces, the conversion rate is:

1 gallon = 128 ounces

Therefore, since Trevor's mom bought 3 gallons of fruit juice, to convert it to to ounces, we have to multiply by 128. This will then be:

1 gallon = 128 ounces

3 gallons = 128 ounces × 3

= 384 fluid ounces of fruit juice.

The volumes of two-spheres are in the ratio of 8:27. The radius of the smaller sphere is 30 inches. Find the radius of the larger sphere.

Answers

Answer:

45 in

Step-by-step explanation:

Given 2 similar figures with ratio of radii = a : b , then

ratio of volumes = a³ : b³

Here ratio of volumes = 8 : 27 , then

ratio of radii = [tex]\sqrt[3]{8}[/tex] : [tex]\sqrt[3]{27}[/tex] = 2 : 3

let r be the radius of the larger sphere then by proportion

[tex]\frac{2}{30}[/tex] = [tex]\frac{3}{r}[/tex] ( cross- multiply )

2r = 90 ( divide both sides by 2 )

r = 45

The radius of the larger sphere is 45 in

solve the quadratic equation:
3x^2+x-5=0

Answers

3x²+x-5=0

a = 3, b = 1, c= -5

-> ∆ ( delta ) = b²-4ac = 61 > 0

-> x1 =( -b+√∆ )÷ 2a =...

x2 = (-b-√∆)÷2a =...

p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.

Which triangle is congruent to ABC?

Answers

Answer:

c

Step-by-step explanation:

the awnser is c

The triangle in option (D) follows the property of congruence triangle.

Therefore option (D) is correct.

What is a triangle?

A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.

The sum of the angles of a triangle is always 180°

In the given triangle ABC,

Two sides AB, and BC are given.

And two angle B and C are shown.

To find the triangle which is congruent to ABC,

Use Angle-side-Angle property,

According to ASA property,

One side and two angles should be equal.

The triangle in option (D) shows the ASA property.

Hence, option (D) is correct answer.

To know more about Triangle on:

https://brainly.com/question/2773823

#SPJ2

plz help i give brainlist !!!!!!!!!1 help now please

Answers

Answer:

option 3

Step-by-step explanation:

The answer is option 1

help me with this plss

Answers

Answer:

175 AKA B

Step-by-step explanation:

40/8=5 5*35=175

How many terms are in the expression x + 4x-3?
O A. 5
O B. 3
O C. 6
O D. 4

Answers

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

B. 3

Thanks Hope it helps
B. 3

The terms are x, 4x, and -3

i need help with this geometry question !

Answers

Answer:

15

Step-by-step explanation:

First, calculate one side of your triangle like this:

[tex]A = h\frac{b}{2} \\\\A = 6 \frac{2.5}{2} \\\\A= 7.5[/tex]

You have 2 halves however, so add them to get your total area.

Janelle wants to purchase a house that costs $425,000. She needs to have 20% of the purchase price for the down payment. What is the down payment?

Answers

Answer:

85,000

Step-by-step explanation:

425,000 x .20=85,000

find the surface area of the prism

Answers

Answer:

Total surface area is 94 ft^2

Now,

T.S.A = 2 ( lb + bh + lh )

= 2 ( 3*5 + 5*4 + 3*4 )

= 2 ( 15 + 20 + 12 )

= 2 * 47

= 94 Sq. ft

This is Right Answer.....

I hope you understand....

In parallelogram PQRS if m_SPQ=25º find m_RSP.
R
Р
25°
XS

Answers

Answer:

180-25=155 degrees

180-25=155.


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C

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F

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what's the value of x?

Answers

Answer:

x=40

Step-by-step explanation:

Reflections have to be equal to each other.

Therefore, the equation is going to be 3x-6=114. This is equal to 3x=114+6. This is equal to 3x=120. x=120/3. x=40. Therefore, x=40.

If this helps please mark as brainliest

Answer:

X=40   pls mark brainlist it would really help

Step-by-step explanation:

3x-6 must equal 114. So...

3x-6=114

+6      +6

3x=120

/3     /3

x=40

What is -29=9-6k-2k-14 If you don't know do not answer!!!
MUST SHOW WORK!!!

Answers

Answer:

Positive 3

Step-by-step explanation:

-29=9-6k-2k-14

-29=-5-8k

-24=-8k

k=3

Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.

Answers

Answer:

its jimmy

Step-by-step explanation:

Answer:

-7

-8

Step-by-step explanation:

Factors need to add up to the b in the equation and multiply to the ac.

y = ax^2 + bx + c

Complete the paragraph to show how you can solve problems involving equivalent expressions.

_______________with bar models or algebra tiles to determine if the expressions are_________.You can also write equivalent expressions using_________________________and order of operations.


Blank 1 options.
Evaluate the variables.
Model the expressions.
Follow the order of operations.
Use numerical expressions.
Blank 2 options.
Mathematical.
Solvable.
Equivalent.
Theoretical.
Blank 3 options.
Properties of expressions.
Numerical expression.
properties of operations.
Variable expressions.

Answers

Answer:

Step-by-step explanation:

Model the expressions

with bar models or algebra tiles to determine if the expressions are

Equivalent.

You can also write equivalent expressions using

properties of operations

and order of operations.

Answer:

Step-by-step explanation:

Blank 1

Model the expressions.

Blank 2 options.

Equivalent.

Blank 3 options.

properties of operations.

Giving brainlist to whoever answers

Answers

Answer: I belive b, I could be wrong  tho.

Step-by-step explanation:

Answer:

I think that the answer is B

What is the volume of this Triangular Prism?

Answers

Step-by-step explanation:

V = 0.5 X b X a X h

V = 0.5 × 5 × 4.3 × 14

V = 150.5in

ace please help

plss​

Answers

Answer: C $25

HOPE THIS HELPS

Need this question completed as soon as possible! Please!

Answers

Answer:

B is the answer

Step-by-step explanation:

I converted each option to decimals so answer b looks like

2.25> 2.23> -2> -2.2

Andy runs 437.5 meters in 62.5 seconds. If Andy runs at a constant speed, how far does he run in one second?

Answers

Answer:

1 sec = 437.5 divided by 62.5

=7

Step-by-step explanation:

7 meter per second

Can somebody help me out my grade are bad

Answers

Answer:

Mixed Number: 7 And 1/10

Improper Fraction: 71/10

Please give me Brainliest if I'm right ! :)

Answer:

Mixed Number: 7 1/10

Improper Fraction: 71/10

Step-by-step explanation:

A Mixed Number is a Number with a fraction as part of it so 7 is a whole number, so this is the "number" part. .1 isnt a whole number, so you find out what the simplified form of .1 is, and you get 1/10. Put them together and you get 7 1/10. An improper fraction is where the number becomes only a fraction, no whole numbers allowed! you can find out 1 = 10/10 so this means 7 = 70/10. Add the .1 (1/10) to this and you get 71/10.

I NEED THIS TOMORROW AT THE LATEST! ITS FOR A 100 POINT TEST AND IM FALLING MATH SO PLEAS HELP!!!! SOS

Evaluate the expression for the given value.

2w+2l when w=7, l=5

Answers

Answer:

Solution given:

we have

2w+2l

when w=7, l=5

2w+2l=2×7+2×5=14+10=24

Step-by-step explanation:

hope it is helpful to you

Express the solution graphically of – }(2x + 1) < 3.

Answers

Answer:

The third one counting from the top.

Step-by-step explanation:

We have the inequality:

(-1/3)*(2x + 1) < 3

The first thing we need to do is isolate x on one side of the inequality.

First we can by -3 in both sides of the inequality, and remember, because we are multiplying by a negative number, the inequality sign changes its direction:

(-3)*(-1/3)*(2x + 1) > 3*(-3)

(2x + 1) > -9

Now we can subtract 1 in both sides:

2*x + 1 - 1 > -9 - 1

2*x > -10

Now we can divide by 2 in both sides:

2*x/2 > -10/2

x > -5

Then we should see a number line such that all the points at the right of -5 are colored.

The correct option is the third one, counting from the top.

The ordered pair (5, __ ) is the linear relation with equation y = -2x + 8. Find the missing number in the ordered pair.

Answers

Answer:

-2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

FunctionsFunction NotationCoordinates (x, y)

Step-by-step explanation:

Step 1: Define

[Function] y = -2x + 8

[Coordinate] (5, __) → x = 5

Step 2: Solve for y

Substitute in x [Function]:                                                                                y = -2(5) + 8Multiply:                                                                                                             y = -10 + 8Add:                                                                                                                   y = -2

The sum of a number and five divided by fifteen

Answers

Answer:

Option F

Step-by-step explanation:

Let the number be n.

Sum of a number and 5 is n + 5.

Sum of a number and five divided by fifteen is

( n + 5 ) / 15

A ball and a bat cost £90 in total. Three balls and two bats cost £210 in total. How much
does a bat cost?
Submit Answer

Answers

Answer: 60

Step-by-step explanation:

ball =x

bat = y

x + y = 90

and

equation II is

3 x + 2 y =210

By multiplying by 3 to equation I both sides

we get equation III as

3( x + y) = 3 ( 90 )

3x + 3y =270 III

subtract II and III

we get 3x+3y=270

- 3x+2y=210

--------------------------

0+y= 60

y =60

cost of bat is y ie = 60

and cost of ball ,is

let put value of y in equation I

x+60=90

x=90-60

x=30

cost of ball is 30

Here are the last questions from my previous post!

Answers

Answer:

1 - C (38 cm)

2 - A (13)

3 - C (4x + 44 = 180)

Step-by-step explanation:

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