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3 years ago

8

The library is designing a book display with fiction books 28 biographies and 40 non fiction books. Each shelf will have only on

e type of book on it. Sheena says she can put 5 books on each shelf. She listed the common factors of 20,28,and 40 below to support her reasoning

1 answer:

Rufina [12.5K]3 years ago

3 0

If the question is how many shelves are needed, then the answer is 18 shelves.

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How many sides does each regular polygon have if the measure of each interior angle is 160

Leviafan [203]

Answer:

4 sides i think

4 0

3 years ago

From 1960 to 2010, a certain money stock measure was growing at the rate of approximately 43e(1/2)x billion dollars per decade,

natulia [17]

Answer:

1222 billion dollars.

Step-by-step explanation:

To find the total increase from 1960 to 2010, we need to find the growth of each decade and sum them all:

In the period 1960-1970, we have x = 1, and the growth is:

$y(1) = 43e(1/2) = 70.895$

In the period 1970-1980, we have x = 2, and the growth is:

$y(2) = 43e(2/2) = 116.8861$

The growth in the following 3 periods are:

$y(3) = 43e(3/2) =192.7126$

$y(4) = 43e(4/2) = 317.7294$

$y(5) = 43e(5/2) =523.8472$

So the total growth in the period 1960 - 2010 is:

$Total = y(1) + y(2) + y(3) + y(4) + y(5)$

$Total = 70.895 + 116.8861+192.726+317.7294+523.8472$

$Total = 1222.08\ billion\ dollars$

Rounding to the nearest billion dollars, we have a total of 1222 billion dollars.

6 0

3 years ago

One side of a rectangle is 20 cm larger than the other side. If you make the smaller side two times larger and the larger side t

grandymaker [24]

Let L be the length
Let w be the width
Let p be the perimeter
L+w+L+w=p
L=w+20
3L+2w+3L+2w=240
Sub the first equation in for L in the second equation and solve for w
3(w+20)+2w+3(w+20)+2w=240
3w+60+2w+3w+60+2w=240
10w+120=240
10w=240-120
10w=120
W=120/10
W=12
Sub w into the first equation and solve for L
L=w+20
L=12+20
L=32
Hope this helps!

3 0

4 years ago

The question isssssssss...........

leonid [27]

The answer is 43.01, because it is a 5-sided shape like a pentagon. Thus using the formula of to find the area of a pentagon, you will find the area of the shape.

5 0

3 years ago

PLEASE HELPPP ASAP, NEED THIS DUEEE ASAP

valentina_108 [34]

Answer:

Proportional relationship.

Step-by-step explanation:

From the given table, let us find the ratio of each pair of time and distance.

The first pair is 2 and 90.

Therefore, the ratio is $r=\frac{90}{2}=45$

The second pair is 3 and 135.

Therefore, the ratio is $r=\frac{135}{3}=45$

The third pair is 5 and 225.

Therefore, the ratio is $r=\frac{225}{5}=45$

The fourth pair is 6 and 270.

Therefore, the ratio is $r=\frac{270}{6}=45$

Since, the ratio of each pair is same and equal to 45, therefore, the relationship is proportional relationship.

8 0

3 years ago