Mathematics Middle School

A cube has a surface are of 54. What's the volume?


A. 36

B. 27

C. 18

D. 64
80 points!!

Answers

Answer 1
Given Information :

Surface area of cube = 54 sq. units

To find :

Volume

Calculation :

We know that,

[tex]\bigstar \: \boxed{\sf {Volume_{(Cube)} = (\ell)^3}} \\ [/tex]

l = length of side

Let's find out the side first. We know that,

[tex]\bigstar \: \boxed{\sf {T.S.A_{(Cube)} = 6\ell^2}} \\ [/tex]

According to the question,

[tex] \longmapsto \sf {54 = 6\ell^2 } [/tex]

[tex] \longmapsto \sf {\dfrac{54}{6} = \ell^2 } [/tex]

[tex] \longmapsto \sf {9 = \ell^2 } [/tex]

[tex] \longmapsto \sf {\sqrt{9} = \ell } [/tex]

[tex] \longmapsto \sf \red{3 \: units = \ell } [/tex]

Now, calculating volume :

[tex]\bigstar \: \boxed{\sf {Volume_{(Cube)} = (\ell)^3}} \\ [/tex]

→ Volume = l × l × l

→ Volume = 3 × 3 × 3

→ Volume = 27

Option B is correct.

Related Questions

Shane's rare book collection contains 40 books. He donates 15% of his books to the national library, sells 14 of his books to a rare book dealer, and sells 4 books online. How many books remain in Shane's book collection?

Answers

Answer: 16 books

Step-by-step explanation:

40(.15)=6

40-6=34

34-14=20

20-4=16

someone please help PLEASEE ZOOM IN TO READ THE QUESTION PLEASEE HELP
a) 3/7
b)3/10
c)2/5
d)1/2

Answers

1/2 i think so if i wrong sorry

Angle 1 and Angle 2 are supplementary. If m∠1=27° , what is m∠2 ?

Answers

Answer:

m∠2 = 153°

Step-by-step explanation:

If Angle 1 and Angle 2 are supplementary, then that means they both add up to 180°.

180 - 27 = 153

m∠2 = 153°

The answer will be 153 degrees !!

Which statement describes the graph??

Answers

Answer:

the third ansswer choice

Step-by-step explanation:

C would be the answer.

Hello mind helping me on this?

Answers

Answer:

C. 6

Step-by-step explanation:

So it says read less thann 25 books --> that means the numbers are 13,14,14,16,19,21,21,22,23, and 24 --> a total of 10 numbers

Then it says read more than 35 books --> that means the numbers are 37,41,42,43 --> a total of 4 numbers

Now, it says how many more --> that means you subtract 4 by 10 = 10 - 4 = 6

Therefore the answer is 6 more students read less than 25 books than read more than 35 books.

C. 6

So it says read less thann 25 books --> that means the numbers are 13,14,14,16,19,21,21,22,23, and 24 --> a

total of 10 numbers

Then it says read more than 35 books that means the numbers are 37,41,42,43 -- > a total of 4 numbers

Now, it says how many more --> that means you subtract 4 by 10 10 -4 = 6

Therefore the answer is 6 more students read less than 25 books than read more than 35 books.

The graph shows Elizabeth’s speed during a 55-minute run. During which time interval did Elizabeth’s speed increase?

Answers

Answer:

0 - 5

Step-by-step explanation:

I need help lol... find the value of x

Answers

Answer:

B. x=37

Step-by-step explanation:

These are vertical opposite angles and they are equal to each other.

so, 2x+6=80

2x=74

x=37

37 bestie so true...

what is the value of x in the figure ?
plz i beg help i will give brainlist and 21 point

Answers

4x + 2 = 150 (vertically opposite angles)
4x = 150 - 2
x = 148/4
x= 37

Hope this helped and have a nice day : )
The answer is 37 because 148/4=37 and 148 +2= 150

Can you please help thxs.

Answers

It’s 47. I got it by adding which i’m pretty sure u do for volume.

Mr. Halili has challenged the students to a mile run. He is able to run a mile in 7 minutes. What is his speed in miles/minute? Convert this into miles per hour (hint: there are 60 minutes in an hour).

Answers

Answer: 1/7 miles per minute ≈ 0.14 miles per minute

For mph you multiply the result by 60

60/7 miles per hour ≈ 8.57 miles per hour

If you could explain to me how you get the answer, that will be great!

Answers

Answer: 48 cm^2

Step-by-step explanation:

find the surface area of the rectangles and squares

3(4)=12

3(3)=9

5(3)=15

find the surface area of the triangle

SA=bh÷2

3(4)=12

12÷2=6

both of the triangles have the same base and height so multiply it by 2

6(2)=12

add all of the surface areas

12+9+15+6+6=48

Write and Solve Equations-Word Problems

For each context, draw a model, write an equation, and then write a complete sentence to answer the question in the context.

Answers

Answer:

Step-by-step explanation: it would be josh has 2 jars of jelly

The number of coins in the red jar is 83 and the number of coins in the red jar is 110.

How to find the equation of the words problem?

The blue jar has 27 more coins than the red jar. There are total of 193 coins.

The number of coins in each jar can be calculated as follows:

Using equation,

let

x = coins in the red jar

Therefore,

coins in the blue jar = 27 + x

Therefore,

total coins in the jars = x + 27 + x

193 = x + x + 27

193 - 27 = 2x

166 = 2x

divide both sides by 2

x = 166 / 2

x = 83

Therefore,

number of coins in the red jar = 83

number of coins in the blue jar = 83 + 27 = 110

learn more on equation here: https://brainly.com/question/28992296

#SPJ1

PLZ HURRY! Jenny mixed 4 kg of mixed nuts containing 16% peanuts with 12 kg of mixed nuts containing 40% peanuts. What percent of the new mixture if peanuts?

Answers

Answer:

34%

n = new % = Answer

(4kg x 16%) + (12kg x 40%) = (New Percentage(Total kg))
(.16 x 4) + (.4 x 12) = n(4 + 12)

Simplify above to get:

.64 + 4.8 = 16n
.64 + 4.8 = 5.44
5.44 = 16n
Divide both sides by 16
.34 = n
34%
Convert .34 to Percentage by moving decimal to the right 2 times.

MaybeKuro

Math makes me feel dum ;-;

Answers

Subtract 10 from both sides
-0.035d=4-5
Simplify 4-10 to 6
0.035y=-6
Divide both sides by -0.035.
D=-6/0.035
Simplify
Y=171.42

PHOTOGRAPHY Joseph subscribes to a website for processing his digital pictures. The subscription is $8 and 5-by-7-inch prints are $0.15 each. How many prints does Joseph purchase if the charge for January is $11?
help now i beg i will give brainlist plz

Answers

The answer is 20 prints.

Explanation:
The total cost is $11. Joseph paid $8 for the SUBSCRIPTION (NOT PRINTS) already, so we take away the 8 from 11, equaling in $3 left.
The question is asking for the amount of prints. Now that we only have 3 dollars left, we just divide that by the cost of each print (0.15) to see how many prints can go into that cost.
3 divided by 0.15 is 20. So, Joseph purchased 20 prints.

QUICK HELP ME! HELP HELP HELP HELP

Answers

........................?????

Im still not sure, can someone help me?

(I will give brainliest)
(NO LINKS OR FILES)

Answers

Answer:

# 3) 3 miles

# 4) 6 miles

I would say it’s C and C

please help 19 math question

Answers

I think the answer is 8 miles

Answer: I would say 8 miles

Step-by-step explanation: Because north is up then he went west so 8 miles

The table below shows the results of asking 200 people their favorite flavor of pie.






Question:
Which statement is not supported by the data in the table?

Answers

Answer:

Apple pie is the favorite pie of 24% of the people serveyed

Step-by-step explanation:

24% of 200 would be 48 people, making this statement incorrect.

Apple pie is the favorite pie 24% of the people serveyed

Is a plain the result of constructive forces, destructive forces, or both?

help pls ill give brainliest!

Answers

Answer:

best guess is both

Step-by-step explanation:

8th grade

Volcanoes can be destructive forces within the earth because they can ruin buildings, knock down trees, erupt the land, break apart rocks, and kill animals and plants, Volcanoes can be constructive forces too.

A storeowner made a list of cake flavors sold in the last month. They sold 120 vanilla cakes, 270 chocolate cakes, and 110 red velvet cakes. Based on this data, what is the probability that the next customer will buy a red velvet cake? Express your answer as a fraction and percent

Answers

Answer:

The fractional/percentage probability of someone buying a Red Velvet cake is 110/500, or 0.22.

Step-by-step explanation:

First, note the amount of red velvet cakes. There are 110 cakes in this flavor. Next, add up the total amount of cakes. There are 500 cakes in the store. This gives us 110/500. Finally, express 110/500 as a decimal, 0.22.

Hope this helps!

Find the missing angle.

Answers

Answer:

total angle of a triangle = 180°

other two angles = 85° , 65°

∴ the missing angle = 180 - ( 85 + 65 )

                                 = 180 - 150

                                 = 30

hope this answer helps you..

please mark as brainliest... thank you!

the missing angle is 30°. you add the other two and subtract it from 180° since a triangle is always 180°. hope this helps? can i please get brainliest?

I keep asking for help, but these are my last questions and I'm finished.

Answers

Answer:

21. 15

22. 120

23. 25

24. 73

Step-by-step explanation:

m a t h

The area behind the free throw line on a basketball court is a semicircle with a 6 foot radius. What is the area of the semicircle?

Answers

Answer:56.52

let me know if this is wrong

Step-by-step explanation:

A=πr^2 divided by 2

(3.14)(6)^2

(3.14)(36)=113.04

113.04÷2=56.52

Please help for brainliest:
Write the expression p^-2 in positive exponential form

Answers

Answer:

1/p^2

Step-by-step explanation:

To get rid of a negative exponent, make it under a 1/

Answer:

1/p³

Step-by-step explanation:

Question 3
Show the work please

Answers

Answer:

Step-by-step explanation:

One sec let me look it up

Can you help me with this question show your work of how you got your answer this due in 16 minutes NO LINKS OR DOING IT JUST FOR THE POINTS AND NO STEALING MY POINTS WITH RANDOM ANSWERS i need the full answer with work shown plss and thank you Will Give brainliest

Answers

Answer:

Nevermind im sorry because there's a vertex that isn't a whole number and i dont know how to do that, but the first ones are 6,8 and -6, 3 for the vertexes of the pre image, I dont  know how to do the other one. For the other image, one is 9, 7 and the other one is -3, 2. Again, I don't know how to do the other ones but I hope these at least help

Can someone please help me find the area of the figure.

Answers

Answer:

17

Step-by-step explanation:

I did mental math

Answer:

rectangle=3*8 which is 24, and triangle is 4*5/2 do 24+10=34

Step-by-step explanation:

Jada has d dimes. She has more than 30 cents but less than a dollar.



Write two inequalities that represent how many dimes Jada has.

Answers

Answer: d3< d10>

Step-by-step explanation:

Find the value of x. Then find the m∠B and m∠C.

Answers

Answer:

X = 10

Step-by-step explanation:

HOPE it helped

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