PLEASE HELP ME!!!
Tim is sorting his book collection into groups. He places each group onto bookshelves that can each hold a maximum of 25 pounds. His collection includes hardcover books that weigh 3 pounds each and softcover books that weigh 2 pounds each.

Select all of the possible numbers of hardcover books that could be on one bookshelf.
3
4
8
9
12

Answers

Answer 1

Answer:

3 and 4

Step-by-step explanation:

Answer 2

The number of hardcover books will be 3,4, and 8.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Tim is sorting his book collection into groups. He places each group onto bookshelves that can each hold a maximum of 25 pounds. His collection includes hardcover books that weigh 3 pounds each and softcover books that weigh 2 pounds each.

Total weight = 25 pounds

The number of hardcover books which weigh less than 25 pounds is,

3 x 3 pounds = 9 pounds

4 x 3 pounds = 12 pounds

8 x 3 pounds =- 24 pounds

Therefore, the number of hardcover books will be 3,4, and 8.

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Related Questions

A football field measures 300 feet in length. It can also be expressed as approximately

5.7 x 10^n .

If there are 5,280 feet in 1 mile , which is the most reasonable value of n.

Answers

Answer: n=-2

Step-by-step explanation:

Given

The length of the football field is  [tex]300\ ft[/tex]

In the mile, it can be expressed as [tex]5.7\times 10^n\ mile[/tex]

Also, [tex]5280\ ft=1\ mile[/tex] or

[tex]1\ ft=\dfrac{1}{5280}\ miles\\\\1\ ft=1.893\times 10^{-4}\ miles[/tex]

converting [tex]300\ ft[/tex] to miles

[tex]\Rightarrow 300\times 1.893\times 10^{-4}\\\Rightarrow 5.68\times 10^{-2}\approx 5.7\times 10^{-2}[/tex]

Comparing it with the given value [tex]5.7\times 10^n\ mile[/tex]

we get [tex]n=-2[/tex]

Bubble algae cells can grow up to 5 cm in diameter. Calculate the surface area : volume ratio of this cell.

Answers

Answer:

6:5

Step-by-step explanation:

Bubble algae cells can grow up to 5 cm in diameter. Calculate the surface area : volume ratio of this cell.

The algae is spherical in nature

Volume of the algae =4/3 pi r³

Volume of the algae = 4/3×pi×2.5³

Volume of the algae = 62.5/3 pi

Surface area = 4pi r²

Surface area = 4pi ×2.5²

Surface area = 25pi

Taking their ratio

surface area : volume ratio

= 25pi:62.5/3 pi

= 25 × 3/62.5

= 1.2

Hence the required ratio is 12/10 which is 6:5

Which figure will be produced by rotating Figure F 90° counterclockwise about the origin
(0,0)?

Answers

Answer:

The 3rd option

Step-by-step explanation:

When the x coordinate is positive, which way do you move on the coordinate plane?

Answers

Answer:

to the right

Step-by-step explanation:

Answer:

Right.

Step-by-step explanation:

When the x coordinate is positive, you move right on the coordinate plane.

For reference, here are the other directions.

When the x coordinate is negative, you move left on the coordinate plane.

When the y coordinate is positive, you move up on the coordinate plane.

When the y coordinate is negative, you move down on the coordinate plane.

ACELLUS HELL ASAP
Find the probability that the pitcher will
throw 4 or fewer pitches to a batter.

Answers

4/5 or 0.8 or 80%

hope you have an amazing day <3

The probability that  the pitcher will throw 4 or fewer pitches to a batter is 0.9.

What is Probability ?

The way to find the likeliness of an event is called Probability.

It is given that

Pitcher is throwing ball

The probability that he throws 4 or fewer pitches to a batter is = ?

The no. of favourable outcomes for the given condition is

P(X ≤4 ) = P(X=1) + P(X =2) + P(X=3)+P(X=4)

Total Outcomes = 15+20+40+15+20

Total outcomes = 100

Favourable outcomes = 15+20+40+15

Favourable Outcomes = 90

Probability =  Favourable Outcomes / Total Outcomes \

Probability = 90/100 = 0.9

Therefore the probability that  the pitcher will throw 4 or fewer pitches to a batter is 0.9.

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4,12,20 find the 41st term

Answers

Answer:

The 41st term of the given series is 324

Step-by-step explanation:

a= 4

a2= 12

d= a2-a

d= 12-4 = 8

now, we have to find 41 term that is a41

a41 = a+ 40d

a41= 4+ 40× 8

a41= 4+ 320

= 324

therefore the 41st term is 324

Answer:

324

Step-by-step explanation:

The sequence observed appears to be an arithmetic sequence. The formula for an arithmetic sequence is an = a1 + (n - 1)d, where an is the nth term, a1 is the first term, n is the term position, and d is the common difference. Let's write down what we know.

n = 41

a1 = 4

d = 8

So, let's plug our values into the equation and solve.

an = 4 + (41 - 1)8

an = 4 + (40)8

an = 4 + 320

an = 324

Kat is interested in getting chickens so she can have fresh eggs. Before she buys her chickens, she wants to find the mean number of eggs each one will lay. She begins by randomly selecting 40 chickens from a large poultry farm and counts how many eggs each one lays within one month. She finds the mean to be 24.8 eggs with a standard deviation of 6.9 eggs. Which of the following is the 90% confidence interval for the true mean number of eggs chickens from this poultry farm lay in one month?

Find the t-table here.

(21.85, 27.75)
(22.59, 27.01)
(22.96, 26.64)
(23.38, 26.22)

Answers

Answer:

C

Step-by-step explanation:

Took it

The confidence interval of eggs chickens from this poultry farm lay in one month will be (22.96, 26.64). Then the correct option is C.

What is the confidence interval of the sample?

If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.

Let the sample mean given as μ and

The sample standard deviation σ, and

The sample size = n, and

Then the heights would be outside the 90% confidence interval will be

For 90% confidence interval, we have z = 1.645

⇒ μ ± z (σ/√n)

Kat is interested in getting chickens, so she can have fresh eggs.

Before she buys her chickens, she wants to find the mean number of eggs each one will lay.

She begins by randomly selecting 40 chickens from a large poultry farm and counts how many eggs each one lays within one month.

She finds the mean to be 24.8 eggs with a standard deviation of 6.9 eggs.

The 90% confidence interval for the true mean number of eggs chickens from this poultry farm lay in one month will be

⇒ μ ± z (σ/√n)

⇒ 24.8 ± 1.645 (6.9/√40)

⇒ 24.8 ± 1.84

Then the confidence interval of eggs chickens from this poultry farm lay in one month will be (22.96, 26.64).

Then the correct option is C.

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Find the volume of this shape.

Answers

Answer:

240 ml

Step-by-step explanation:

more calculations

PLEAS HELP (no links or reported) I will give brainleast!

Answers

Answer:

its 84

area = perimeter of base x height + 2(area of base)

the rest you know what to do -_-

Step-by-step explanation:

the answer is 84 . good luck

Answer ASAP! Best Answer Will Be Awarded, Links Will Be Reported. Thanks!

Answers

Answer:

x ≤ 1/3

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

distribute the 5, combine the x, add 10 to -8 to get 2 and finally 6x < 2

i’m sorry about the quality but questions 6-9! anything helps :)

Answers

Answer:

Hi! The answer is in the picture! *They're color coded*

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

A circle has a circumference whose length is 25(pi). Find the length of an arc whose central angle is 120.

Answers

9514 1404 393

Answer:

  (25/3)π

Step-by-step explanation:

A central angle of 120° is 1/3 of a circle, so the arc length will be 1/3 of the circumference:

  (1/3)(25π) = (25/3)π ≈ 26.18 . . . . units

Answer:

Solution :-

Circumference = 25π

Total angle made by circle = 360

Now,

120 is ⅓ of 360⁰.

⅓ × 25π = 25π/3

Hence,

Length of arc = 25π/3

[tex] \\ [/tex]

first answer will get brainlest and 5 stars and a thanks by me

Answers

Answer:

4 seconds

Step-by-step explanation:

Triangle HIJ is similar to triangle KLM. Find the measure of side LM. Figures are not
drawn to scale.

Answers

Answer:

ML = 12.8

Step-by-step explanation:

24/6.4 = 48/ML

24ML = 307.2

ML = 12.8

Find the value of x and y that will make each quadrilateral a parallelogram.​

Answers

Answer:

the opposite Angles sum up to give 180

Step-by-step explanation:

3y +3y = 180

y=30

if y = 30 the x = 55

are you clear?

Answer:

3y+3y=180°{sum of opposite angle of parallelogram are supplementary}

6y=80

y=180/6

y=30°

again,

4y-65+x=180°{ sum of of opposite angle of parallelogram are supplementary }

4×30-65+x=108

x=180-55

x=125

so to make quadrilateral as parellogram

3y=3y3×30=3×3090°=90°

Identify the coordinates of triangle ABC when it is dilated by a scale factor of 2 from the origin (0,0).

Answers

Answer:

[tex]A' = (-4,4)[/tex]

[tex]B' = (2,6)[/tex]

[tex]C' = (2,0)[/tex]

Step-by-step explanation:

Given [Missing from the question]

[tex]A = (-2,2)[/tex]

[tex]B= (1,3)[/tex]

[tex]C= (1,0)[/tex]

[tex]k = 2[/tex] --- scale factor

Required

The new coordinates

The new coordinate is calculated by:

[tex]New = Old * k[/tex]

So, we have:

[tex]A' = A * 2[/tex]

[tex]A' = (-2,2) * 2[/tex]

[tex]A' = (-4,4)[/tex]

[tex]B' = B * 2[/tex]

[tex]B' = (1,3) * 2[/tex]

[tex]B' = (2,6)[/tex]

[tex]C' = C * 2[/tex]

[tex]C' = (1,0) * 2[/tex]

[tex]C' = (2,0)[/tex]

what is the answer to this

Answers

This is what I got I hope it helps
Check the image below for explanation
X=3/2
Y= 3/4

the triangle below has an area of 22 units 2 find the missing side

Answers

Answer:

11

Step-by-step explanation:

area = base x height / 2

22 = 4x/2

2x22=44/4=x=11

hope that answers your question

Answer:

[tex]x=11[/tex]

Step-by-step explanation:

[tex]1/2*4*x=22[/tex]

→ [tex]2x=22[/tex]

→ [tex]x=22/2[/tex]

→ [tex]x=11[/tex]

[tex]-------[/tex]

hope it helps...

have a great day!!

HELP!! I will give 30 poins and brainliest to the one who gives me the right answer FIRST!!

Answers

Answer:

What is the question

Step-by-step explanation:

Answer:

What the question?

Step-by-step explanation:

What’s the ratio of the volume?
20:4
4:1
16:1
64:1

Answers

Answer:

4:1

I hope this helps a little bit.

Just got this don’t know how to do btw it’s due tomorrow

Answers

Answer:

2 and 4 answers

Step-by-step explanation:

[tex]\frac{xy}{xv} = \frac{yz}{vw} = \frac{zx}{wx}[/tex]

so the second is correct and forth is correct too

PLEASE NEED HELP RIGHT NOW
An MP3 player has 60 songs stored on it.
Of the songs, 21 are rock, 9 are rap, 18 are dance, and 12
are country.
If songs are played randomly, find the probability a rock song is played.

Answers

Answer:

21/60 (simplified = 7/20)

Step-by-step explanation:

Dionne can fold 175 packing boxes in 50 minutes. Elias can fold 120 packing boxes in 40 minutes. Use unit rates to find how much time it will take each person to fold 210 packing boxes. Drag the numbers to explain and show your answer. Numbers may be used once or not at all.

Answers

Answer:

Dionne can fold 210 packing boxes in 60 minutes

Elia can fold 210 packing boxes in 70 minutes

Step-by-step explanation:

Dionne:

175 packing boxes in 50 minutes

Boxes folded per minute = Total packing boxes / number of minutes

= 175/50

= 3.5 packing boxes per minute

Number of minutes to fold 210 packing boxes = Total packing boxes / boxes packed per minute

= 210/3.5

= 60 minutes

Dionne can fold 210 packing boxes in 60 minutes

Elias:

120 packing boxes in 40 minutes

Boxes folded per minute = Total packing boxes / number of minutes

= 120/40

= 3 packing boxes per minute

Number of minutes to fold 210 packing boxes = Total packing boxes / boxes packed per minute

= 210/3

= 70 minutes

Elia can fold 210 packing boxes in 70 minutes

PLEASE HELPPPPPP
35 POINTS ILL GIVE BRAINLYEST

Answers

Answer:

I think it's e) tom brady

Step-by-step explanation:

Answer:

Step-by-step explanation:

there are 3 parts to the given shape.  The half circle, the box part in the middle and then the right triangle on the left side.  Add those 3 parts up for the total area

box part in the middle:  2*4 = 8

right triangle on the left: 1/2*4*8 = 16

half circle: 1/2*[tex]\pi[/tex]*[tex]2^{2}[/tex]= 6.2831...

add the 3 up

8+16+6.2831 = 30.2831

30.3 [tex]m^{2}[/tex]  looks good  :)  for the answer ( it's a close approximation )

If t varies inversely as a and t= 2 when a = -4, what is t when a = 1/3?

1. -2 2/3
2. -24
3. - 1/6
4. -2/3

Answers

Answer:

t = - 24

Step-by-step explanation:

Given t varies inversely as a then the equation relating them is

t = [tex]\frac{k}{a}[/tex] ← k is the constant of variation

To find k use the condition t = 2 when a = - 4

2 = [tex]\frac{k}{-4}[/tex] ( multiply both sides by - 4 )

- 8 = k

t = [tex]\frac{-8}{a}[/tex] ← equation of variation

When a = [tex]\frac{1}{3}[/tex] , then

t = [tex]\frac{-8}{\frac{1}{3} }[/tex] = - 24

In the figure below, m∠ABC = 57 degrees and m∠DAB =116 degrees. What is m∠ABC?

Answers

Answer:

∠ACB = 59°

Step-by-step explanation:

∠BAC = 180 - 116 = 64°

∠ACB = 180 - 64 - 57 = 59°

Keep Trying Write two division problems that have zeros in the quotient. One of the problems should have a remainder and the other should not.​

Answers

So basically you must first use the step that got you here

Is [tex]\pi /2[/tex] the same as [tex]0.5\pi[/tex] ?

Answers

Answer:

Step-by-step explanation:

π/2= 1.5707963267948966192313

0.5π = 1.5707963267948966192313

The correct answer is same

Answer:

yes both are same

both have same answer

hope it is helpful to you

What is the length of each side ???

Answers

Answer:

The answer is 10 foot

Step-by-step explanation:

A square has 4 sides, so technically 40/4 will give you the answer, which is 10.

Please help due today in 20 minutes!!!!
I WILL report bots.
I need help on all the questions please.
Will mark brainliest if all questions answered.
Please help me!!!!!

Answers

hey! i definitely recommend you downloading socratic you can scan 1 question at a time and it will give you the answer. it will show up like this then press cymath math problem then it tells you how it got the answer. i promise you this isn’t some type of bot stuff but if you more questions on how to use the app lmk! i have a A+ in math bc of this app

Answer:

11. 3

12. 78.74

13. 30

14. 69.74

15. 48

16. 7

17. 36.9

18. 69.5125888

Step-by-step explanation:

Used a calculator.

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