8. Each box in a set of decorative storage boxes is a cube.
a) The sides of the smallest box are 30% of the length of the sides of the largest
box. The volume of the largest box is 7784 cubic inches more than the
volume of the smallest box. Define one or more variables, and write an
equation that represents the situation.
b) What are the lengths of the sides of the largest and smallest boxes?
c) Two of the other boxes have a total volume of 2457 cubic inches. The length
of the sides of the smaller of these boxes is 75% of those of the larger box.
Write and solve an equation to find the lengths of the sides of the boxes.

Answers

Answer 1

Answer:

20 in and 6 in12 in and 9 in

Step-by-step explanation:

a) Let the side of the larger box be x, then the side of the smaller box is 0.3x.

Their volumes are:

x³ and (0.3x)³ = 0.027x³

The difference in volumes:

x³ - 0.027x³ = 77840.973x³ = 7784x³ = 7784/0.973x³ = 8000x = ∛8000x = 20

b) The sides are 20 in and 20*0.3 = 6 in

c) The other two boxes with sides x and 0.75x

Sum of the volumes:

x³ + (0.75x)³ = 2457x³ + 0.421875x³ = 24571.421875x³ = 2457x³ = 2457/1.421875x³ = 1728 x = ∛1728x = 12

Sides of the boxes are 12 in and 12*0.75 = 9 in


Related Questions

ANSWER ASAP!!!
What are the coordinates of the point in Quadrant
IV on the coordinate plane??
a. (4,1)
b. (1,4)
c. (—4,5)
d. 5, —4)

Answers

Answer:

c

Step-by-step explanation:

got it right on edjenuity

pls help will mark brainliest !

Answers

Answer:

third and fourth one.

Not sure tho

2. If LC = 10, find LH.

Answers

Answer:

20

Step-by-step explanation:

LC = 1/2 LH

2LC = LH

2(10) = LH

LH = 20

Answer:

20

Step-by-step explanation:

Help please I don’t get it

Answers

Answer:

B

Step-by-step explanation:

when the arrow is pointing toward the left side that means less than side. When the arrow is pointing towards the right side that means greater than.

Answer:

B, because that symbol means at least so you would go to the negative side which is on the left it has to start from 4 which is correct and this means negative: - The 0 is the origin so from the origin to the left side is negative from the origin to the right side is positive you want to look for negative because it's negative 4.

A storekeeper increased the price of hats by 5%.

Write an equation to calculate the increase of the total

cost, c, when the price of a hat is p dollars.

Select all that apply.

A c 1.50p

BC-,95p

cc 1.05p

Dc-1 + 05p

Ec-(1 + .05)p

Answers

Answer: c = 1.05p

Step-by-step explanation:

Price of the hat = p

Percentage increase in the price of the hat = 5%

The equation to calculate the increase of the total cost, c, of the hat will be:

c = p + (5% × p)

= p + (5/100 × p)

= p + (0.05 × p)

= p + 0.05p

c = 1.05p

HELP ASAP GIVING BRAINLIEST

Answers

Answer:

5: c, 3: a

Step-by-step explanation:

what is the area of a right triangle with a height of 8.9cm and a base of 14.3cm

Answers

The area is 63.635

A= ab/2

a= 8.9
b=14.3

8.9 * 14.3= 127.27 (* means multiply)
127.27/2 = 63.635

how to solve this please help and ill give brainlest to ppl

Answers

Mark brainiest first then I’ll give answers

GIVING BRAINLIEST! Please help.

A wooden right circular cylinder with diameter 9 cm and height 9 cm is topped with a hemisphere. The surface area, in cm^2, of the resulting shape is...

a) 141.75pie

b) 182.25pie

c) 162pie

d) 405pie

e) 18.25 + 60.75pie

Answers

Answer: answer is d

Step-by-step explanation:

i would explain but im helping 7 other people rn

i need help on number 8​

Answers

Answer:

Step-by-step explanation:

3.8

Hope it helps

Please mark brainest

Pls help me i need your help to do it pls

Answers

The answer is 39 because the measurement of CBA is 90 so if CBD is 51 then u have to take away 51 out of 90

Answer: 39°

Step-by-step explanation:

This is a right triangle, meaning one of the angles is a 90° angle. Angle CBA in this case is the 90° angle. In order to figure out the measure of ABD, you subtract the measure of CBA by the measure of CBD, which is 51°.

90 - 51 = 39

Thus, the measure of ABD is 39°

Alvin is 14 years older than Elga. The sum of their ages is 56. What is Elga's age?

Answers

Answer:

Elga is 32 years old.

Step-by-step explanation:

Let Alvin's age = A

Let Elga's age = E

 

Alvin is 10 years younger than Elga, so A = E - 10

The sum of their ages is 54, so A + E = 54

 

Replace the A in the second equation with E - 10, then solve for E.

A + E = 54 becomes (E - 10) + E = 54

 

Combine like terms

2E - 10 = 54

 

Add 10 to both sides

2E = 64

 

Divide both sides by 2

E = 32

 

Just carpet has eight different quality grades of carpeting. Three types are being selected for a corporate test on durability. how many different samples of size 3 can be taken without replacement? how many different samples of size 5 can be taken without replacement?

Answers

Answer:

When we have a set of N elements, the number of combinations of K elements (such that N ≤ K) from these N elements is:

[tex]C(N, K) = \frac{N!}{(N - K)!*K!}[/tex]

Then if we have 8 different types of carpet, and we want to see how many different samples of 3 types we can choose, we just need to replace N by 8, and K by 3 in the above equation:

[tex]C(8, 3) = \frac{8!}{(8 - 3)!*3!} = \frac{8!}{5!*3!} = \frac{8*7*6}{3*2} = 56[/tex]

So there are 56 different samples.

Now we can do the same, but this time we want to use 5 types of carpet, then we will have K = 5.

[tex]C(8, 5) = \frac{8!}{(8 - 5)!*5!} = \frac{8!}{3!*5!} = 56[/tex]

Again, we have 56 different samples.



PLEASE HELPPPPPPPP....?.......
If a+b=15 and ab=54 then find
1)
[tex] {a}^{2} + {b}^{2} [/tex]
2)
[tex](a - b )^{2} [/tex]
3)
[tex]a ^{2} - {b}^{2} [/tex]

Answers

Answer:

a = 9

b = 6

I hope you can do the rest yoyrself, as I coulsnt find how to type it out ;-;

Answer:

1) 117

2) 9

3) 45 or -45

Step-by-step explanation:

a=9

b=6

1) a²+b²=9²+6²=81+36=117

2) (a-b)²=(9-6)²=3²=9

3) a²-b²=81-36=45

It’s also possible that a=6 and b=9, in which case

1) (same)

2) (same)

3) 36-81=-45

3
2
1
4
-3
- 2
2.
4
-3
What is the slope of the line?

Answers

Answer:

The slope of the line is -3/1

Step-by-step explanation:

Using the rise over run method I calculated that the slope is -3/1 because every block that the line goes over it goes 3 down.

Answer:

Slope of the Line = 3.

Pls I need help :) it’s due today

Answers

Answer:

nine is the area I think

Step-by-step explanation:

base times height is width

Answer:

27 in. ^2

Step-by-step explanation:

Ok. Let's start by reflecting on what the definition of lateral area is. In this case, it's all the faces except the 2 equilateral triangle faces. So, let's find the rectangular faces. Length for all of them is 9, width for all of them is 1. So, area is 9 for all 3 lateral faces. 3*9=27.

Before there was any life on Earth, which gas was absent from the ancient atmosphere?


A.nitrogen
B.ammonia
C.oxygen
D.methane

please answer lol

Answers

If I am right it should be D because pigs make methane

help me for brainlist please amelias

Answers

Answer:

b. V = 336 ft³

Step-by-step explanation:

[tex]V = \frac{1}{2}bhl\\b = 14\\h = 8\\l = 6\\V = \frac{1}{2}(14)(8)(6)\\V = 336 ft^{3}[/tex]

find the missing lengths of the sides.

Answers

Given:

The figure of a right angle triangle.

[tex]a=b[/tex]

Hypotenuse = [tex]9\sqrt{2}[/tex] in.

To find:

The missing lengths of the sides.

Solution:

In the given right angle triangle both legs a and b are equal, and hypotenuse is [tex]9\sqrt{2}[/tex] in.

Using Pythagoras theorem, we get

[tex]Hyponteuse^2=Base^2+Perpendicular^2[/tex]

[tex](9\sqrt{2})^2=(a)^2+(b)^2[/tex]

[tex]81(2)=(a)^2+(a)^2[/tex]                    [tex][\because a=b][/tex]

[tex]81(2)=2(a)^2[/tex]

Divide both sides by 2.

[tex]81=(a)^2[/tex]

Taking square root on both sides.

[tex]\pm \sqrt{81}=a[/tex]

[tex]\pm 9=a[/tex]

Side cannot be negative. So,

[tex]9=a[/tex]

Thus, the missing side lengths are a=9 in and b=9 in.

Therefore, the correct option is C.

A rectangular piece of land has an area of 3/4 square mile. The land is 2 1/2 miles long. What is its width

Answers

Given:

A rectangular piece of land has an area of [tex]\dfrac{3}{4}[/tex] square mile.

The land is [tex]2\dfrac{1}{2}[/tex] miles long.

To find:

The width of the rectangular land.

Solution:

We have,

Area of a rectangle =  [tex]\dfrac{3}{4}[/tex] square mile.

Length = [tex]2\dfrac{1}{2}[/tex] miles

We know that, area of a rectangle is

[tex]A=l\times b[/tex]

[tex]\dfrac{3}{4}=2\dfrac{1}{2}\times b[/tex]

[tex]\dfrac{3}{4}=\dfrac{2(2)+1}{2}b[/tex]

[tex]\dfrac{3}{4}=\dfrac{5}{2}b[/tex]

Multiply both sides by [tex]\dfrac{2}{5}[/tex], we get

[tex]\dfrac{2}{5}\times \dfrac{3}{4}=\dfrac{2}{5}\times \dfrac{5}{2}b[/tex]

[tex]\dfrac{6}{20}=b[/tex]

[tex]\dfrac{3}{10}=b[/tex]

Therefore, the width of the land is [tex]\dfrac{3}{10}[/tex] miles.

HELP PLS HELP HELP HELP THIS IS ASAP

Answers

The first one is 2x+4 and the second is 6x+6. Hope this helps!

what is 3r + n^2 + 3n + r + 5 + 2n + 2 simplified?

Answers

Answer: n^2+5n+4r+7

Step-by-step explanation:

Answer:
The answer is 4r+n^2+5n+7

In triangle ABC, the sum of the measures of angle A and angle B is 120. The sum of the measures of angle B and C is 110. Find the measure of the greatest angle of the triangle.

Answers

Answer:

70

Step-by-step explanation:

the sum of the three is 180, so c is 60, a is 70, and b is 50.

A store is selling a backpack thats is a wholesale price of $8.50. They marckup price is 50%. What did they sell the backpack for?

Answers

Answer:

          $12.75

Step-by-step explanation:

[tex]8.5+50\%\times8.5=8.5+0.5\times8.5=8.5+4.25=12.75[/tex]

Work out the size of angle x

Answers

Answer:

angle x=10

Step-by-step explanation:

Subtract 2x2 – 1 from 4x2 + 2

Answers

Answer:

5 ig

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

4x2= 8

8+2= 10

------

2x2 = 4

4-1=

3

-----

10-3=7

Please help with this it’s 1 month due and I’m stressing out

Answers

Answer:

[tex]1\frac{3}{5}[/tex] or 1.4 as a decimal

since i don't know which way you need

Step-by-step explanation:

8/4 or 1 3/5 is the answer

Simplify
5 + 2(3x − 4) − x

Answers

[tex]5x - 3[/tex]

Step-by-step explanation:

1) Expand by distributing terms.

[tex]5 + 6x - 8 - x[/tex]

2) Collect like terms.

[tex](5 - 8) + (6x - x)[/tex]

3) Simplify.

[tex] - 3 + 5x[/tex]

4) Regroup terms.

[tex]5x - 3[/tex]

Therefor the answer for this equation will be, 5x - 3.

Answer:

5x-3

Step-by-step explanation:

distribute 2 to 3x and -4

then you get 5+6x-8-x

combine like terms

5-8; 6x-x

you get: 5x-3

hopes this helps

can someone help me with this?! thanks!!

Answers

Answer:

you literally just translate each shape by the number of squares specified.

Step-by-step explanation:

for example, move shape 1 5 squares to the right, then 4 down. it will be in the middle area of quadrant 1 (where it already is).

Answer:

hope this helps you out good luck

7 + x/4 = 15 x=___ help

Answers

7 + x/4 = 15

x/4 = 15 - 7

x/4 = 8

x = 8 · 4

x = 32

Answer: x=32

Step-by-step explanation:

Given

7+x/4=15

Subtract 7 on both sides

7+x/4-7=15-7

x/4=8

Multiply 4 on both sides

x/4 ×4=8×4

x=32

Hope this helps!! :)

Please let me know if you have any questions

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