W varies directly as r cubed and inversely as s. If w=24 when r= 4 and s= 8, find out when w= 81 and s= 27?

Answers

Answer 1

Translating the word problem into a symbolic statement:  W = kr³/s.  Find k by letting W = 24, r = 4 and s = 8:

       

         k·4³

24 = --------            

           8

This reduces to 3 = 4^3*k, or 3 = 64k, or k = 3/64 (the constant of proportionality).

       3r^3

w = ---------

         64


Related Questions

IF KOBE HAD 8 DUNKS AND LEBRON HAD 10, HOW MANY MORE DUNKS DID LEBRON HAVE THEN KOBE?

Answers

Answer:

2

Step-by-step explanation:

10-8

Answer:

Step-by-step explanation:

2

What is the value of the expression shown below?

7 + (10 − 4)2 ÷ 4 × 1 over 2 to the power of 3

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Answer:

59/8 or 7 3/8

The pentagons JKLMN and PQRST are similar.
Find the length x of PQ.​

Answers

Answer:

x=16/5

Step-by-step explanation:

scale fator 16/20

4/5

4*4/5

16/5

whoever answers it gets 5 staars

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The line crosses the y axis below the origin

Answer:

the line crosses the y-axis below the origin

Step-by-step explanation:

Pls help this is my last points

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Answer:

520 - 10x = 380

Step-by-step explanation:

x= 14

Answer:

520-10x=380

x = 14

Step-by-step explanation:

Ax + By=C
solve for x

Answers

Ax+By=C
-By. -By
Ax. =C-By
/A. /A
X. =C-By/A

Describe the congruence transformation that maps quadrilateral ABCD to quadrilateral A'B'C'D'.

Question 27 options:

270° counterclockwise rotation


Reflection across the y-axis


90° clockwise rotation


90° counterclockwise rotation

Answers

Answer:

90 degree counterclockwise rotation

Step-by-step explanation:

After a 90° counterclockwise rotation, we get the required quadrilateral A'B'C'D'.

Hence the fourth option is correct.

The rotation of axes refers to a transformation in which the coordinate axes in a coordinate system are rotated to form new axes.

When we rotate the quadrilateral ABCD about 90 degrees counterclockwise,

The new position of vertices be,

A ⇒ B'

B ⇒ C'

C ⇒ D'

D ⇒  A'

Hence,

After this rotation, we get the required quadrilateral A'B'C'D' as shown in the figure.

Hence,

After 90° counterclockwise rotation we get such a triangle.

To learn more about quadrilaterals visit:

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a line passes through the point (-8,5) and has a slope of 5/4 write an equation in slope intercept form

Answers

5=5/4(8)+b

5=5/4(8)+b

5=10+b

b=-5

Now we have the slope AND y-intercept!

y=(5/4)x-5

the sum of present ages of Anil and Sunil is 22 years. if anils present age is one-half of sunils present Age plus 4 years .find their present age​

Answers

Answer:

A+S=22

A=S/2+4

Multiply second equation by 2 and rearrange.

2A-S=8

Add equations 1 and 3.

3A=30

A=10

Substitute for A in either of the first 2 equations to get

S=12

Step-by-step explanation:

A businessman dropped a coin from the top floor of his office building and it fell according to the formula S(t)=−16t^2+3t^0.4, where t is the time in seconds and S(t) is the distance in feet from the top of the building.

Answers

Answer:)

Step-by-step explanation:

A rectangular room is 14 feet by 20 feet. A rectangular rug is placed in the room so that a 2-foot border of floor around the edge of the room is not covered by the rug. What is the area of the rug?

Answers

Answer:

the rug should be 10 feet by 16 feet

this makes the area 160 foot squared

Step-by-step explanation:

there is a 2 foot border on each side so the total area loses 4 feet from length. this gives 10 feet by 16 feet.

160

top correct lolssssss

length in the boundary of any figure is called​

Answers

Answer:

perimeter

Step-by-step explanation:

Perimeter is the distance around a two dimensional shape, a measurement of the distance around something; the length of the boundary.

ginny brought 2.2 pounds of banana at a cost of 0.49 per pound + 1.3 pounds of grapes at a cost of 1.29 per pound what was the total cost of the bananas and grapes Ginny purchase ​

Answers

Answer:

IP 2.2 pounds of a banana at the cost of a foreign body 120 pounds of graphs are at the cost of a point on the total cost of the

If triangle ACD is similar to triangle ABE, find the value of x?

Answers

Upload a photo please

The value of x and y from the given figure is 2.1 units and 4.5 units.

Given that, triangle ACD is similar to triangle ABE.

What are similar triangles?

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.

Here, AB=3, AC=5, BE=x, AE=y, ED=3 and CD=3.5

AD=AE+ED

AD=y+3

Now, AB/AC = AE/AD = BE/CD

So, 3/5 = y/(y+3) = x/3.5

⇒ 3/5 = x/3.5

⇒ 3×3.5=5x

⇒ 5x=10.5

⇒ x=10.5

⇒ x=2.1

3/5 = y/(y+3)

⇒3y+9 =5y

⇒2y =9

⇒y =4.5

Therefore, the value of x and y from the given figure is 2.1 units and 4.5 units.

To learn more about the similar triangles visit:

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5 x − 1 ≤ 2 Give your answer as a fraction in its simplest form

Answers

Answer:

x ≤ 3/5

Step-by-step explanation:

5 x − 1 ≤ 2

Add 1 to each side

5 x − 1+1 ≤ 2+1

5 x ≤ 3

Divide each side by 3

5 x /5 ≤ 3/5

x ≤ 3/5

charlotte has 3 yards of fabric she needs to cut the fabric into 7 equal peices. how many yards long should each peice of fabric be?

Answers

Answer:21

Step-by-step explanation:

What is the measure of XYZ?

Answers

Answer:

a. An inscribed angle is 1/2 the intercepted arc. The intercepted arc is 68°. The measure of angle xyz is therefore 34°.

Answer:

34 degrees

Step-by-step explanation:

Plz help its a riddle

Answers

Answer:

30

Step-by-step explanation:

the shoe=20

the person=5

the glasses=2

20+5×2

PEMDAS

5×2=10

10+20

=30

Answer:

The ans is 30

Step-by-step explanation:

the is  shoe=20

the  is person=5

the  is glasses=2

20 shoes +5 people×2 glasses

5×2=10

10+20

=30

(hope this helps can i plz have brainlist :D hehe)

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Answers

Hope this helps!! If you don’t understand feel free to clarify

A disc has a radius of 31 cm. What is the circumference of
the disc, rounded to the nearest whole number? (Convert the
fraction to a decimal)

A.38 cm.
B.154 cm
C.22 cm
D.11 cm

Answers

Answer:

22 cm

Step-by-step explanation:

radius is 3 1/2 cm, which is 3.5 in decimal form

the circumference comes out to be 21.99, which is rounded to 22.

Which are the best buys?
ay 3 books for Rs 60 or 5 same books for Rs 90

Answers

Answer:

Sine 3 books are for 60-

60/3

Rs20 (per book)

and 5 books for Rs 90-

90/5

Rs18 (per book)

Thus we can save 2Rs and 5 books for Rs 90 iscthe best buy

5 for 90 because 90/5 is 18 and 60/3 is 20 so you save 2 . You need to know how much each individual book costs

how do you solve 3x-7 over 3​

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Answer: x - 7/3

Step-by-step explanation:

I think thats the farthest you can go with this problem

Answer:

Let's simplify step-by-step.

3x−7^3

=3x−343

Step-by-step explanation:

What is the volume of David’s box?

Answers

Answer:

H - 6x^7y^15

Step-by-step explanation:

Volume of a rectangular prism (box) is l x w x h

3x^2y^4 * 4x^2y^5 * 1/2x^3y^6

= 6x^7y^15

Pl help it’s for a grade

Answers

It’s A or D but I think it’s A

Ed and Greg are working on their math homework. Ed says (2.0) is a solution to y < 4x - 8. Greg disagrees and says (2,0) is not a solution
Who is correct and why?

Answers

Answer:

sorry I dont know

Step-by-step explanation:

LOOK AT PICTURE, WHOEVER HAS CORRECT ANSWER, I WILL MARK BRAINIEST :)

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Answer: A

Step-by-step explanation: cant contain division by a variable in a polynomial

Seth's family plans to drive 280 miles to their vacation spot. They would like to complete the drive in 5 hours.
Find the average speed in miles per hour needed to make the trip in the desired time.
Answer:
miles per hour.

Answers

Answer:

56 miles per hour

Step-by-step explanation:

I just divided 280 into 5

hope that helps:)

How can we get system B for system A?

And

Are the systems equivalent?​

Answers

Answer: Subtract the equations in system A.

=============================================================

Explanation:

The first equation of each system is the same, so we'll try to transform the second equation of system A into the second equation of system B.

There are probably a number of ways to do this, but the quickest way that I can see is to subtract the equations of each system.

For system A, notice how the x terms line up and subtract to 5x-4x = 1x = x. In that same system, we have the y terms subtract to y minus (-7y) = y-(-7y) = y+7y = 8y

So far we have x and 8y as the results. So the left side is x+8y, which matches with the x+8y in the second equation of system B. So far so good.

Now we subtract the values on the right hand sides of each equation of system A. We get 3-8 which turns into -5, which also matches with the -5 in the second equation of system B.

Overall, subtracting the two equations of system A leads to x+8y = -5, which is the second equation of system B.

the store offers a 20% discount, The t- shirt is $18 and the discounted price is $3.60 ?
If the regular price for an item is x dollars, what is the discounted price? (Hint: write an expression)

Answers

Look up "Everything You Need To Know About (Your Subject) In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught in it so it might help you.

  Please help this is due today please i really need help it’s due in 5 hours!!!

Given parallelogram FGHI determine the missing information

Don’t answer with one answer, blank or ridiculous answer please this is serious

Answers

Answer:

y = 3 cm and x = 2.5 cm

Step-by-step explanation:

As we can see it is a parallelogram so

y = 3 cm (being opposite sides of parallelogram)

Now while calculating the diagonal we can use the Pythagoras relation. i.e

perpendicular (p) = 4 cm (IH)

Base (b) = 3 cm (FI)

Hypotenuse (h) = FH = ?

We know by using Pythagoras theorem

h = √ p² + b²

= √ 4² + 3²

= √ 25

= 5 cm

Here we got FH = 5 cm

so the value of x will be 2.5 cm as the diagonal bisects.

Hope it will help :)

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