Suppose y varies directly as x, and y = 5.4 when x = 9. Find x when y = 24.

Answers

Answer 1

Answer:

[tex]x = 40.[/tex]

Step-by-step explanation:

[tex]if \: \: y = kx \: then \\ k = y \div x \: and \: x = y \div k \\ so \: k = 0.6 \: and \: x = 40 \: when \: y \: is \: 24.[/tex]


Related Questions

What distance on the map (in centimeters) represents an actual distance of 8 kilometers?
____ centimeters

What is the actual number of kilometers that is represented by 5 centimeters on the map?
____ kilometers
please please please help

Answers

Answer:

1. 800,000 cm

2. 0.00005 km

Step-by-step explanation:

1. 1 km = 100,000 cm

8 km = 800,000 cm

2. 1 cm = 1/100,000 km

5cm = 0.00005 km

If u(x)= x^5-x^4+x^2 and v(x)= -x^2, which expression is equivalent to (u/v)(x)? Ox^3-x^2 O -x^3+x^2 O-x^3+x^2-1 Ox^3-x^2+1​

Answers

Answer:

C. -x^3 + x^2 - 1

Step-by-step explanation:

Given

u(x) = x^5 - x^4 + x^2 and v(x) = -x^2

(u/v)(x) =

(x^5 - x^4 + x^2) /(- x^2) = - (x^3 - x^2 + 1) = -x^3 + x^2 - 1

Correct option is C

what is the slope of the line?

Answers

Answer:

Slope=2

Hope this helps

Describe a sequence of reflections, rotations, and translations that shows that quadrilateral ABCD is congruent to quadrilateral EFGH.

Answers

Answer:

Rotate it counterclockwise then reflect it across the Y-axis

hope this helped :)

Step-by-step explanation:

Answer: Rotate it counterclockwise then reflect it across the Y-axis

Which property of equality should Wade use to solve the equation StartFraction x Over 6 EndFraction = 3? addition property of equality subtraction property of equality multiplication property of equality distributive property of equality

Answers

Answer:

(C) multiplication property of equality

Step-by-step explanation:

Answer: C. multiplication property of equality

Step-by-step explanation: On Edgenuity!!!!!!!!!!!!!!

please help urgent!!

Answers

Answer:

The area of the rectangle is [tex]A=12b^6+6b^3-18b^2[/tex]

Step-by-step explanation:

Area of a rectangle

A rectangle of height H and width W has an area of:

[tex]A=H*W[/tex]

The rectangle shown in the figure has a height of:

[tex]H=3b^2[/tex]

And a width of

[tex]W=4b^4+2b-6[/tex]

The area is

[tex]A=(3b^2)(4b^4+2b-6)[/tex]

Operating:

[tex]A=(3b^2)*4b^4+(3b^2)*2b-(3b^2)6[/tex]

[tex]A=12b^6+6b^3-18b^2[/tex]

The area of the rectangle is [tex]A=12b^6+6b^3-18b^2[/tex]

what is 2 1/4 converted into an improper fraction

Answers

Answer:

9/4

Step-by-step explanation:

goodluk

Answer:

9/4

Step-by-step explanation:

1 Given That y varies directly as x. If x=5 when y=45 find x when y=270

Answers

Answer:

30

Step-by-step explanation:

y = kx

k= y/x

k= 45/5

k= 9

Therefore the value of x can be calculated as follows

k= y/x

x= y/k

x= 270/9

x= 30

#What is the answer to -2v+32=4(v-4)

Answers

Answer:

V = 8

Step-by-step explanation:

66 points easy question if there are 20 red balls in the gym basket and need to put them in a group of 5. How many balls I will have in each group.

Answers

4 balls in each group.

Step-by-step explanation:

you just divide 20 by 5, or add 5 times until you get 20.

Answer:

5 group of 4 balls

Step-by-step explanation:

Red balls : 20

5 Gym baskets

20 - 5      15

15 divided by 5    3

3 divided by 20     0.15

0.15 divided by 5     0.03

0.03 x 15   0.45

0.45 x 55 24.75

24.75 - 4.75    20

20 divided by 5   4

Answer is 4

BRAINLIEST PLS

find the value of k if: (2x − y)² − (2x + y)² = 4xyk​

Answers

Answer:

k = - 2

Step-by-step explanation:

( 2x - y )²

Formula : -

( a - b )² = a² + b² - 2ab

Here,

a = 2x

b = y

( 2x - y )²

= ( 2x )² + y² - 2 ( 2x ) ( y )

= 4x² + y² - 4xy

So,

( 2x - y )² = 4x² + y² - 4xy

( 2x + y )²

Formula : -

( a + b )² = a² + b² + 2ab

Here,

a = 2x

b = y

( 2x + y )²

= ( 2x )² + y² + 2 ( 2x ) ( y )

= 4x² + y² + 4xy

So,

( 2x + y )² = 4x² + y² + 4xy

( 2x - y )² - ( 2x + y )²

= 4x² + y² - 4xy - ( 4x² + y² + 4xy )

= 4x² + y² - 4xy - 4x² - y² - 4xy

= 4x² - 4x² + y² - y² - 4xy - 4xy

= 0 + 0 - 8xy

= - 8xy

( 2x - y )² - ( 2x + y )² = 4xyk

- 8xy = 4xyk

Divide 4xy on both sides,

- 8xy / 4xy = 4xyk / 4xy

- 2 = k

k = - 2

Therefore, the value of k is - 2.

Amy, Jane, and Kayla bought tickets to a movie. Amy bought 2 adult tickets and 4 children tickets for $35. 50. Jane bought 3 adult tickets and 3 children tickets for $36. 0. How much will Kayla pay for 5 adult tickets and 4 children tickets?

Answers

Using a system of equations, it is found that Kayla will pay $54.25 for 5 adult tickets and 4 children tickets.

What is a system of equations?

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

Variable x: Cost of an adult ticket.Variable y: Cost of a children ticket.

Amy bought 2 adult tickets and 4 children tickets for $35.50, hence:

2x + 4y = 35.50

x + 2y = 17.75

x = 17.75 - 2y

Jane bought 3 adult tickets and 3 children tickets for $36.0, hence:

3x + 3y = 36

x + y = 12

From the first equation:

17.75 - 2y + y = 12

y = 5.75.

x = 17.75 - 2 x 5.75 = 6.25.

Hence the total paid for Kayla is given by:

T = 5 x 6.25 + 4 x 5.75 = $54.25.

More can be learned about a system of equations at https://brainly.com/question/24342899

Can someone help me with this problem?

Answers

10 packages

First find the perimeter

perimeter = 2 × (length+width)

2 × (20 + 40)

2 × 60 = 120

4 yards = 12 feet

120 ÷ 12 = 10 packages

if 3x + 28 = 46 what is the value of 2x + 6

Answers

Answer:

18

Step-by-step explanation:

3x + 28 = 46

Subtract 28 from each side

3x + 28 = 46

3x+28-28 = 46-28

3x=18

Divide each side by 3

3x/3 = 18/3

x = 6

Find 2x+6

2(6)+6

12+6

18

Hey there!


3x + 28 = 46


SUBTRACT 28 to BOTH SIDES

3x + 28 - 28 = 46 - 28

CANCEL out d 28 - 28 because it give you 0

KEEPs 46 - 28 because it help solve for the x-value.


NEW EQUATION: 3x = 46 - 28


SIMPLIFY IT!

3x = 18


DIVIDE 3 to BOTH SIDES

3x/3 = 18/3

CANCEL out: 3/3 because it give you 1

KEEP: 18/3 because it give you the x-value.

NEW EQUATION: x = 18/3


SIMPLIFY IT!


x = 6


Now that we have your x-value we can substitute it into the equation of: 2x + 6


SIMPLIFYING:

2x + 6

= 2(6) + 6

= 12 + 6

= 18


Thus, your answer is: 18


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

Please help James correctly estimated this difference by rounding each number to the nearest whole.

38.85−2.32

What did James get for his estimate?

Answers

Answer:

James should have gotten 37 as his estimate

Sam is practicing long track speed skating at an ice skating rink. The distance around the
rink is 250 yards. He has skated around the rink 7 times so far.
How many more yards does he need to skate around the rink to complete 3 miles?
Sam needs to skate
more yards.

Answers

Step 1 250 x 6= 1,760. Step 2 1,760 x 3=5,280 step 3 5,280 - 1,500 = 3,780 So Sam needs 3,780 more yards

g(x) = x-2, find g(-3)

Answers

Answer:

-5

Step-by-step explanation:

Since you are given [tex]g(x)[/tex] and what x is equal to (in this case, -3), all you have to do is plug the x back into the original equation.

[tex]g(x) = -3 - 2 = -5[/tex]

As last time, just evaluate and explain.

Answers

p=3829.39

ur welcome

Answer:

p = 10

Step-by-step explanation:

10p - 3 = 2(12 + 4p) - 7

First, distribute within the parenthesis

10p - 3 = 24 + 8p - 7

Combine like terms

10p - 3 = 17 + 8p

Subtract 8p from both sides of the equation

2p - 3 = 17

Add 3 to both sides of the equation

2p = 20

Divide both sides by 2 to get your answer:

p = 10

I hope this helps :)

Need help with this

What is the solution to the system of equations?
3x - 2y = 8
6x - 4y = 12
Use any algebraic method (substitution or elimination) to justify that the given system of equations has no solution.
What do you know about the two lines in this system of equations graphically?
Answer:

Answers

Answer:

[tex]\displaystyle Inconsistency\:[No\:Solution][/tex]

Step-by-step explanation:

We need to isolate one pair of variables so they are set to zero. Now, in this case, we need to split one of the equations in negative half, so we will select the second equation:

[tex]\displaystyle \left \{ {{3x - 2y = 8} \atop {6x - 4y = 12}} \right. \\ \\ \\ \left \{ {{3x - 2y = 8} \atop {-\frac{1}{2}[6x - 4y = 12]}} \right. \\ \\ \left \{ {{3x - 2y = 8} \atop {-3x + 2y = -6}} \right. \\ \\ \\ \boxed{0 \ne 2}[/tex]

The fact that we have a result like this proves that we cannot obtain a solution from this system, which means that on a graph, these equations are considered parallel [no intersection, so no solution].

I am joyous to assist you at any time.

There were X babies named John born in Wisconsin in 2019. There were 8 fewer than double the number of babies named Jaden born in Wisconsin that same year. Which expression represents the number of babies named Jaden born in Wisconsin in 2019.
A 8X + 2
B 8X - 2
C 2X - 8
D 2X + 8

Answers

2X-8

Two times X minus eight

Help meeeeeeeeeeeeee question 2!!!!!

Answers

Answer:

15.45

Step-by-step explanation:

103x0.15=15.45

Answer:

Do 103 times 0.15 and you get 15.45

Step-by-step explanation:

PLS HELP ITS DUE TODAY

Answers

Answer:

94

I don't really have much else to say but I need 20 characters so y'know :/

Write the sentence as an inequality.
A number y is less than 16.
The inequality is ____

Answers

I believe that the inequality is y < 16.

Restrict the domain of f(x)=x^2 to produce an inverse function?

Answers

Step-by-step explanation:

The range of the original is the domain of an inverse function, and the domain of an inverse function is the range of an original. Since the original equation/function f(x) = x^2 is a parabola with vertex at (0, 0) and opening downward.

I HOPE IT HELPS YOU

PLEASE MARK ME BRAINLIEST:)

could someone please help me & explain?

Answers

Answer:

No.

Step-by-step explanation:

Let's substitute the given coordinate pair into each inequality:

[tex]y > 2x+6\\-4 > 2(-5)+6\\-4 > -10+6\\-4 > -4\rightarrow\text{Not true!}[/tex]

Since this coordinate pair does not satisfy the inequality (note the coordinate pair must satisfy BOTH inequalities), therefore (-5, -4) is not a solution to this system of inequalities.

Solve the following inequality algebraically (picture provided)

Answers

-2 < x/3 + 1 < 5

Subtract 1 from each side:

-2 - 1 < x/3 + 1 - 1 < 5 - 1

-3 < x/3 < 4

Multiply each side by 3:

-3 • 3 < x/3 • 3 < 4 • 3

-9 < x < 12

It takes Kevin 15 minutes to drive 52 miles.
How many miles does Kevin drive per minute?
A
11
30
5
B
C 21
D 3

Answers

Answer:

C

Step-by-step explanation:

3. If m 4 = (3x - 7)º and m 8 = (5x – 23)º,
what is the value of x, m 8?

Answers

Value of x = 8

(3x - 7) = (5x - 23)
-2x = -16
x = 8

Value of m 8 = 17 degrees

5(8) - 23
40 - 23 = 17

Which of the expressions below has a product that is greater than 35? Select all that apply. A) 5.94 × 6 B) 6.18 × 6 C) 7.03 × 5 D) 8.12 × 4

which answers is correct
A B C D

Answers

Answer:

ok lets just solve each and see if its larger then 35

A) 5.94 × 6=35.64

B) 6.18 × 6=37.08

C) 7.03 × 5=35.15

D) 8.12 × 4=32.48

A,B&C

Hope This Helps!!!

Answer

Everyone except D

A's total is 35.64=Yes

B's total is 37.08=Yes

C's total is 35.15=Yes

D's total is 32.48=no so d is incorrect/

So your answers are A  B  C

Hope it helps have a great day

You have just been paid for mowing nine lawns, and you earned $7 per lawn. If you were paid $9 per lawn, how many lawns would you have to mow to earn the same amount of money?

Answers

Answer:

if you got paid seven bucks per lawn, and you mowed nine lawns, you'd have $63 dollars

if you were to mow them for 9 dollars a lawn...

$63 = 9x

63/9 = 7

youd have to mow 7 lawns to get the same amount of money

Step-by-step explanation:

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