Mathematics Middle School

In a Library, Each bookshelf is 1.2m long 90cm wide and 30cm high. How
many books of size 15cm by5cm by 30cm will fit on each shelf? Find the total number of books in the library if there are 60 shelves.

Answers

Answer 1

Answer:

8640

Step-by-step explanation:

No. of books that can be fit in one single shelf = 90/15 x 120/5 = 144

Such that the total number of books in the library if there are 60 shelves = 144 x 60 = 8640

Related Questions

There is approximately 3.3 x 10*8 people in the United States of America in 2018. The average person consumed about 3.4 x 10*2 milligrams of sodium each day. Approximately how much sodium was consumed in the USA in one day in 2018?

Answers

(3.3 x 10^8) x (3.4 x 10^2) = 1.22 x 10^11

5(2 + (−9)) + (−25) :(

Answers

 [tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{Do PEMDAS}[/tex]

[tex]\large\text{Parentheses}[/tex]

[tex]\large\text{Exponents}[/tex]

[tex]\large\text{Multiplication}[/tex]

[tex]\large\text{Division}[/tex]

[tex]\large\text{Addition}[/tex]

[tex]\large\text{Subtraction}[/tex]

[tex]\large\text{5(2 + (-9)) + (-25)}[/tex]

[tex]\large\text{(2 - 9) = \bf -7}[/tex]

[tex]\large\text{5(\bf{-7)}}\large\text{ - 25}[/tex]

[tex]\large\text{5(-7) = \bf -35}[/tex]

[tex]\large\text{-35}\large\text{ - 25}[/tex]

[tex]\large\text{= \bf -60}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: \huge \bf -60}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

-60 is the answer
:))))))))))))))))))))))))

which vaule is farthest away form 0 on the number line -16, 15.5, |15|, |16.5|

Answers

|16.5|
EXPLANATION.
the farthest away number on the number line is the greatest number. (don’t worry about - its the same distance on left and right of the number line)
So if we look at the numbers it is clear that 16.5 is the greatest number. meaning it is the farthest from 0.
The answer is 16.5 because if you look at the number line it is farthest away

The data set shows the ages of everyone in a dance class. 4, 17, 17, 17, 17, 17, 18, 18, 18. Select the statement that correctly describes the data. .
A. The typical value is 17. Most values are close to 17, except 4, which is an extreme value.
B. The typical value is 18 because it is the maximum.
C. The typical value is 4 because it is the minimum.
D. The typical value is 9 because that is the total number of people.​

Answers

Answer:

A, I MIGHT BE WRONG DONT BLAME ME I TRY

Step-by-step explanation:

Answer: I think its D

Step-by-step explanation:

look at the photo due soon

Answers

Answer:

a= 6x+12

a= 6(x+2)

Step-by-step explanation:

Kinda confused but I hope this helps

Answer:

6x+12 & 2(3x+6)

Step-by-step explanation:

2(3x+6)

distribute

6x+12

help plzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Draw coorinate grids. Find the point where it stops at make it on the grid.

Step-by-step explanation:

I’m fairly certain it is graph 2

please help me with my math HM pleeease

Answers

Reflection then clockwise rotation. And yes they are congruent, it’s still the same shape, all they did was move it around. They didn’t change the size, or move the points. Congruent is defined as “identical in form”, but it’s ok if they’re rotated or flipped.

Explain how to draw a circle with a circumference of pi^2 inches.

Answers

Answer:

here can you give me brainliest

Step-by-step explanation:

mr cho travel 30 1/5 miles in 2/3 of an hour. what is the average speed, in miles per hour, of the car?

Answers

151/5 / 2/3 , 151x3 , 456/10
ANSWER: 45.6MPH

Answer:

45.6

Step-by-step explanation:

And also weltonlogan0 They got the same awnser “45.6”

Please help me for 21 points.

Answers

Answer:

24.44 percent

Step-by-step explanation:

F=Friday

S=Saturday

P(F or S)= 20/90+22/90-20/90=22/90

22/90 as percentage is 24.44 percent

Answer:

For Friday, 22% of the check in's happened on that day. For Saturday, 24% of the check in's happened on that day. For both days combined, 46.66% of the check in's happened for both.

Step-by-step explanation:

Overall there were 90 check ins. Since 20 happened on Friday, it would be 20/90, which is 22%. Saturday, 22 check ins happened, so it would be 22/90, which is 24%. Overall, between Friday and Saturday, 42 check in's happened, so it would be 42/90, which is 46.66%.

hi! can someone please help? i added a pic so that u can see what i need help on. hopefully it helps

Answers

Answer:

I'm pretty sure that the answers would go, Wrong, increased, 9 1/2 points, 6 5/8 points, dropped, 12 3/4 points.

Step-by-step explanation:

The reason why it would be wrong is because the amount of points lost was less than the total amount of points gained.

In week one and two the company gained 9 1/2 points and 6 5/8 points. When you add them together, you get 16 1/8 points.

In week three the company lost 12 3/4 points. If you multiply the fraction to change the denominator to 8, the mixed fraction becomes 12 6/8.

16 1/8 - 12 6/8 = 3 3/8

As you can see, there are still points left over.

In the fourth week, they ended up losing all of their points and then some more, but from my understanding it's just asking about the third week.

Hope that this helps!

Seth deposited $40 in a savings account that earns 5% interest each year. How much interest will he earn in 1 year?

Answers

Answer:

$2

Step-by-step explanation:

The formula for simple interest is i = p*r*t, where r is the annual interest rate expressed as a decimal fraction.  Here the principal is $40 and the elapsed time is 1 year.  The amount of interest collectible after 1 year is thus:

i = ($40)(0.05)(1) = $2

Answer:

$2

Step-by-step explanation:

Chris borrowed $1,500 at a simple interest rate of 5% to buy a computer. He plans to have the loan paid back in 2.5 years. How much simple interest will Chris pay
work needs to be shown

Answers

Your Answer:

$75

Step-by-step explanation:

1. 5% to a decimal: 0.05

2. 0.05 × 1,500 = 75

Hope this helped

it would be $75 it’d be sick if you can give me branliest

Tyler used
1 1/4 gallons of paint to paint
5/7 of a fence. How many gallons will it take to paint the whole fence? Write a multiplication equation or a division equation to represent this question, then find the answer.

I also need an explanation for the answer and I need it today :)

Answers

Answer:

1 3/4 gallons of paint

Step-by-step explanation:

sorry if wrong

You need to find a common denominator I chose 28 so I multiplied 4 by 7 and that gives you 28 and you have to do the same thing to the top that you did to the bottom so I multiplied 11 by 7 as well which gave me a fraction of 77/28 then I multiplied 7 by 4 to get 28 and multiplied the top by 4 to get a fraction of 20/28 then I added 8 to 20/28 and to 77/28 to get 28/28 (the whole fence) and 85/28 (the paint you need to cover the whole fence) then I simplified my answer by seeing how many times 28 fit into 85 and it fits 3 times with a remainder of 1 so the simplified answer I got was 3 and 1/28 gallons of paint to cover the whole fence.

Help please pleaseee

Answers

Answer:

27$

Step-by-step explanation:

Answer:

$27.00

Step-by-step explanation:

3 x 2 x 1 = 6 m³

6 m³ x $4.50 = $27.00

Which of the following is a statistical question?
A.
What are the checking account balances of the shoppers in a grocery store?
B.
How many players are on Greg's football team?
C.
How many students attend Natasha's school?
D.
What volume of milk is used to make cupcakes according to Paula's cookbook?

Answers

C how many students attend natashas school

Help plzzzzzzhelp Uuuuuuuuuuuuuuuu

Answers

?? What is the question

hey luvs help would be very much appreciated pls need it by the end of the day<3

Answers

Answer:

it eather abc or d

Step-by-step explanation:there is a 1 in 4 chan of getting it correct so 25 percent chance good luck i dont know it lol

Answer:

x - 2y > -4

       ............

What property of equality would you use to solve the equation n/4 = 16.

Answers

Answer:

Multiplication Property of Equality.

Step-by-step explanation:

Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other.

Multiply 4 to both sides of the equation:

(n/4) * 4 = (16) * 4

n = 16 * 4

n = 64

n = 64 will be your answer.

~

The equation n/4 =16,the answer is 64.

24) A chili recipe includes 2 tablespoons of salt and 5 tablespoons of red pepper. Choose ALL statements that are true about this relationship. A) There is 5/ 2 tablespoon of salt for each tablespoon of red pepper. B) There is 2 5 tablespoon of red pepper for each tablespoon of salt. C) There is 2/ 5 tablespoon of salt for each tablespoon of red pepper. Eliminate D) The recipe has a ratio of 5 tablespoons of red pepper to 5 tablespoons of salt. E) The recipe has a ratio of 5 tablespoons of red pepper to 2 tablespoons of salt.

Answers

Answer:

E

Step-by-step explanation:

This is the only one that has the correct 2:5 salt : pepper ratio.

Hope this helps. Have a good day/night!

(C is a possibility but doubt it's an answer)

Answer:

E

Step-by-step explanation:

If you just read through the question carefully you can find that this is the most likely answer.

What is the area of the rectangle if the sides are 7 and 5?

Answers

Answer: 35

Step-by-step explanation:

To work out the area of a rectangle you just have to times the sides (the base times the height).

7×5=35

Hope this helps :)

Answer:

35 units

Step-by-step explanation:

To find the area of a rectangle, you must multiply the length and width, which is in this case seven and five. 7 times 5 = 35.

Emily has a cube with an edge of 8cm. If she wants to paint it, how many square centimeters will she paint?

Answers

Answer:

384 cm ^2

Step-by-step explanation:

Basically, we're finding the surface area.

The cube is 8*8 all around

Each box has an area of 64cm each.

There are 6 sides on a cube.

64*6 = 384

Hopefully this made since.

(EASY POINTS) Answer num: 5 with a detailed explanation. :)

Answers

Answer:

There is no picture

Step-by-step explanation:

Commutative property of multiplication: Changing the order of factors does not change the product. ... Associative property of multiplication: Changing the grouping of factors does not change the product.

If Sophia purchases n songs for .99 cents each, write an expression for the total cost.

Answers

Answer:

I think the answer would be n×0.99

Step-by-step explanation:

the answer will be n×0.99 because she bought for example n=7 each for 99 cents. to find the total you would have to do 7x0.99. Hope this help you

N x .99 = total cost

Find the area of the shape.
Please help resolve, will mark brainliest if you explain how its done

Answers

to find the area of a circle the formula is 3.14r^2. Answer is 12.56
using the circle area formula pi x radius squared, you do 2^2 * 3.14 = 4 * 3.14 = 12.56. since that’s a quarter of a circle, you divide it by 4 so you get 3.14

Please I’m so confused I need help

Answers

Answer:

F.

Step-by-step explanation:

set it upp.

Answer: I wanna say its f, but I'm not good at this

Step-by-step explanation:

please help asap!
thank you a ton!

Answers

Answer:

I can only help with question 4

Step-by-step explanation:

a)C =2πr =2·π·8 ≈ 50.26548

b)A = πr2 = π·8 2≈ 201.06193

^i got the same answer as them

WILL GIVE BRAINLIEST

Answers

Answer:

[tex]-\frac{4}{7}[/tex]

Step-by-step explanation:

Slope = [tex]\frac{-3-5}{7-(-7)}[/tex] = [tex]\frac{-8}{14}[/tex] =[tex]-\frac{4}{7}[/tex]

the answer is -4/7.

you would first find the difference of the y values which equals -8. then you find the difference in x. this equals 14. since y goes over x that would be -8/14. this can be simplified to -4/7.

have a great day.

Help fast don’t understand

Answers

Answer:

Part A: (-3, -2) and (4, 3)

Part B: 24 units

-6x ≤ 12
solve and show work

Answers

Answer:

x = -2

Step-by-step explanation:

- x - = positive

-6 x -2 = 12

Answer:

Step-by-step explanation:

-6x ≤ 12

Divide both sides by (-6). When dividing by negative number ≤ will change to ≥

-6x/-6 ≥ 12/-6

x ≥ -2

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