A classroom has 2 bookcases that weigh 135 pounds altogether. If they all weigh the same amount, how much does each bookcase weigh?

Answers

Answer 1
67.5 lbs each, because you divide 2 by 135 and get that answer

Related Questions

x+y<6. y<x. y>1 linear programming (graph)​

Answers

Answer:

432167

Step-by-step explanation: programing

Ariel is making bracelets. She bought a 15% foot long string, and a 1243 foot long string. If each
bracelet requires 42 of a foot of string, how many bracelets can Ariel make?

Answers

Answer:

She can make 55 bracelets

Step-by-step explanation:

We have the correct question as follows;

Ariel bought a 15 1/6 foot long string, and a 12 1/3 foot long string. If each bracelet requires 1/2 of a foot long string, how many bracelets can Ariel make

we have the solution as follows

Firstly, we need to find the total length of the strings bought

We can get this by adding what was bought

That would be;

15 1/6 + 12 1/3

= 91/6 + 37/3

= (91 + 74)/6 = 27 1/2 ft

From the question, each bracelet requires 1/2 ft long

so the number of 1/2 ft long bracelets we can find will be;

27 1/2 divided by 1/2

= 55/2 * 2/1

= 55

if the radius of a circular chapatti is14 cm, what will be its area ?

Answers

Answer:

615.75216

Step-by-step explanation:

A=πr2

=π·14^2

≈615.75216

Answer:

[tex]r = 14cm \\ area = \pi \: r {}^{2} \\ area = 3.14 \times 14 \times 14 \\ area = 3.14 \times 196 \\{area = 615.44}[/tex]

What 6 over 4 simplified

Answers

Correct answer is 6/4 = 3/2 = 1 1 2
The answer for this question is 3/2

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Answers

Step-by-step explanation:

B the median is less than the mean

Determine whether the pair of lines is parallel perpendicular or neither 26x+2y=4 and -3x+39y=-15

Answers

Because they are crossing, these are perpendicular lines for both

joey has 628 donuts to ship. each box holds 12 donuts.

Question 1 - How many boxes will joey need so that all of his donuts are in a box?

Question 2 - Are all of the boxes full?

Question 3 - If not, how many boxes are full and how many donuts are in the box that is not full?

Answers

Answer:

53 boxes.

No.

52 are full, 1 is not.

Step-by-step explanation:

628 divided by 12 is 52.3333333333

Please help me find the perimeter for the composite figure.

Answers

Answer:

A 10.28in

Step-by-step explanation:

Find the perimeter of the circle first. Because there are two half-circles, you can just find the circumference of one whole circle. 2πr is the formula. r is the radius. The circumference of the circle is 2π or 6.28.

Then add the two sides of the square. It is 2+2=4. Add 6.28 and 4.

I need quick help!!!

Answers

Answer:

it is 6...................

Which of these expressions is equivalent to −2(x−5) ?

Multiple choice question.

A)
−2x−5


B)
−2x+5


C)
−2x+10


D)
−2x−10
Plzs Help I give someone a brainliest

Answers

Answer:

C.

Step-by-step explanation:

-2(x - 5)

= -2*x - 2*-5

= -2x + 10.

please help with this one. i will give brainliest

Answers

70.. not pretty sure tho

Answer:

B: 170

Step-by-step explanation:

The following graph shows a proportional relationship
What is the constant of proportionality between y and z in the graph?
y
6
5-
4
3+
2+
1+
6
Constant of proportionality=

Answers

Answer:

The constant of proportionality between 'y' and 'x' in the graph is 0.75

Step-by-step explanation:

The constant of proportionality is the constant ratio between two quantities that are directly proportional.

When two quantities are directly proportional, then a percentage increase in one of the quantities will result in an equal percentage increase in the other quantity, and the two quantities are therefore, increasing at the same rate to each other

From the graph we have;

When x = 0, y = 0, all graphs of directly proportional relationships have  x = 0 when y = 0

However;

When x = 2, y = 1.5

When there is an 100% increase, we have;

When x = 2 + 100/100 ×2 = 4, y = 1.5 + + 100/100 ×1.5 =3

Therefore, when x = 4, y = 3

The constant of proportionality = The ratio between each 'y' and 'x' value

∴ The constant of proportionality = y/x = 1.5/2 = 3/4 = 0.75

Therefore;

The constant of proportionality between 'y' and 'x' in the graph = 0.75.

F(x)=-x^2+8x-2 what is the range of the function?

Answers

Answer:

Range:   ( − ∞ , 14 ]

Step-by-step explanation:

HELP PLEASE 24 POINTS

Answers

Answer:

reflection

Step-by-step explanation:

it is being REFLECTED over the x axis so this makes it a reflection

pls mark brainliest I need it

Manager Mark counted the number of innings each Shire Sharks pitcher pitched during the Soiltop Tournament. Calvin pitched 11 innings, Brody pitched 5 innings, Thom pitched 12 innings, Shawn pitched 7 innings, and Harley pitched 5 innings.
Find the mean absolute deviation (MAD) of the data set.

Answers

Answer:

Step-by-step explanation: 55

Tell whether xy = 8 shows direct variation, inverse variation, or neither.

Answers

Answer:

inverse

Step-by-step explanation:

y = k/x indicates inverse variation, which is the same as xy = k

in this particular problem, k = 8

The cracker manufacturer is trying to determine the best dimensions for the boxes to hold their product so that they use the least amount of cardboard.

A rectangular prism with length of 6 inches, width of 4 inches, and height of 12 inches. A rectangular prism with length of 7 inches, width of 6 inches, and height of 9 inches.

Which box uses less cardboard, and how much less cardboard does it use?
A. The box on the right uses 30 inches squared less cardboard.
B. The box on the left uses 30 inches squared less cardboard.
C. The box on the right uses 90 inches squared less cardboard.
D. The box on the left uses 90 inches squared less cardboard.

Answers

Answer:

B, the box on the left used 30 in square units less cardboard.

Step-by-step explanation:

I took this question on my quiz and got it right.

Answer:

Step-by-step explanation:

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HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP

Answers

I believe it’s B I apologize if it’s wrong
I agree with the fist answer it’s B.

Which expression is equivalent to 6/7 divided by 3/5 ?

A. 6/7 x 5/3

B 6/7 x 5/3

C 7/6 divided 3/5

D 5/3 divided 6/7​

Answers

Answer:

A.

Step-by-step explanation:

6/7  / 3/5   we invert the divisor and multiply:

= 6/7 * 5/3

Rewrite the expression by combining like terms. 3y + 5x2 + 10x + 2x2 + 15x – 3y​

Answers

Answer:

7x²+ 25x

Step-by-step explanation:

lol help me please, i need to turn this in before 12 also actually answer don’t just say”oh click on this link”. it’s annoying

Answers

Answer:

G. $7.75 per hour

Step-by-step explanation:

You can choose any of the three functions and divide the amount of pay by the hours worked, for example,

15.50/2=7.75

or

31/4=7.75

or

46.50/6=7.75

They're all the same rate so it doesn't really matter.

Select the correct answer.
A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million units, n years after the survey is conducted is modeled by function p below. The parameter b is an unknown positive base.

p(n)=1.7×b^n

Which statement is true about this situation?

A.
When the survey was initially conducted, the average sales of smartphones was 1.7 million units.
B.
If b = 1.02, the annual sales of smartphones will double in 2 years.
C.
If b = 1.45, the annual growth rate of the sales of smartphones is 145%.
D.
The average annual sales of smartphones increases by 1.7 million units every year.

Answers

Answer:

When the survey was initially conducted, the average sales of smartphones was 1.7 million units.

Step-by-step explanation:

The exponential equation is P ( n ) = 1.7 ( b )ⁿ , where n is the number of years and P ( n ) is the annual sales of smartphones and the initial sales of smartphones was 1.7 million units

What is exponential growth factor?

The exponential growth or decay formula is given by

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( t ) is the value at time t

x₀ is the initial value at time t = 0.

r is the growth rate when r>0 or decay rate when r<0, in percent

t is the time in discrete intervals and selected time units

Given data ,

Let the exponential equation be represented as A

Now , the value of A is

P ( n ) = 1.7 ( b )ⁿ

where , n is the number of years

And , P ( n ) is the annual sales of smartphones

Now , the value of b is the exponential growth factor

At the initial year , the number of smartphones sold is when n = 0

So , when n = 0

P ( 0 ) = 1.7 ( b )⁰

P ( 0 ) = 1.7 million units

Hence , the number of smartphones sold in initial year is 1.7 million units

To learn more about exponential growth factor click :

https://brainly.com/question/13674608

#SPJ7

PLEAS EHELP ILL GIVE BRAINLIEST
PLEASE SHOW WORK SO I CAN UNDERSTAND

Answers

Answer:

The answer is B! I'm 100% sure!

Step-by-step explanation:

8% of $72.60 means 0.08*72.6 which equals 5.808. 20% of $72.60 means 0.2*72.6 which equals 14.52. 14.52+5.808=20.328. 20.328+72.6=92.928 which rounds up to $92.93. I hope this helps! Have a great rest of your day!

Answer:

She paid a total of $92.93 at the salon

Step-by-step explanation:

Well it costed $72.60 but then she did the sales tax which is 8% of 72.60 and then she did a tip which was 20% of 72.60. 8% of $72.60 is 5.81 and 20% of 72.60 is 14.52. Then you would add them to get $20.33 and then you would add the $20.33 to the $72.60 to get $92.93. SO she paid a total of $92.93 at the salon.

$5.81 + $14.52 = $20.33

$20.33 + $72.60 = $92.93

On a tree, the trunk splits into 5 branches. Then each branch splits into 5 smaller branches, and each of those branches splits into 5 very thin branches. How many very thin branches are on the tree?

Answers

Answer:

There are 125 very thin branches.

5 branches x 5 smaller branches = 25 smaller branches25 smaller branches x 5 very thin branches = 125 very thin branches125 very thin branches in your final answer!

Emerson has some yellow stickers and some green stickers. She
has 30 green stickers and the ratio of vellow stickers to green
stickers is 2.5. How many yellow stickers does Emerson have?

Answers

answer:

12

explanation:


the ratio is 2:5 so we know that for every 5 green stickers, Emerson has 2 yellow stickers.

So, we know that 5 goes into 30 6 times so all you have to do is 6 x 2 = 12

pLEASE HELP ME ASAP FOR 9 AND 10

Answers

Answer:

9)

x^2 + 2x + 1 = (x + 1)^2

10)

x^2 - 6x + 9 = (x - 3)^2

Step-by-step explanation:

To complete the square, add the square of half of the x-term coefficient.

Then use the factoring of a perfect square trinomial.

a^2 + 2ab + b^2 = (a + b)^2

a^2 - 2ab + b^2 = (a - b)^2

9)

x^2 + 2x + 1 = (x + 1)^2

10)

x^2 - 6x + 9 = (x - 3)^2

What is the scale factor of two regular pentagons that have areas of 50cm square and 162cm square.

Answers

Answer:

Scale factor = 3.24

Step-by-step explanation:

162 ÷ 50 = 3.24

3(2x+4)=2(9+2x)
I need Help with this one!
And then after, how do I change it so it has no solution at all.

Answers

Answer:

x = 3

Step-by-step explanation:

3(2x+4)=2(9+2x)

6x+12=18+4x

6x-4x=18-12

2x=6

x=3

pd: i solve this as an ecuation

find surface area of the prism

Answers

I believe it will be 360m because you multiply all the measurements shown. Mark Brainly please!

in the figure, c // d. What are the measures of <1 and <2? Enter your answers in the boxes. Just write the numbers. (not the degree symbols)

Answers

Answer:  <1 = 105° and <2 = 75°

Step-by-step explanation:

The information we have is the 75 degree angle already provided. Using our knowledge on transverses we know a 180 degree angle is a straight line (we happen to have two of these (c and d)). Using the corresponding angle theorem we know angle 2 is equivalent to 75 degrees. Supplementary angles refer to angles that add up to 180 degrees. Angle 1 and 2 are supplementary so from there we solve.

180 - 75 = 105

<1 = 105 degrees

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