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Blizzard [7]
2 years ago
15

Use the picture to figure out the 4 digit number combination.

Mathematics
2 answers:
professor190 [17]2 years ago
7 0
3574 it’s the number of books each kids has
andrew-mc [135]2 years ago
4 0

Answer:

1257

Step-by-step explanation:

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The radii of earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of
SCORPION-xisa [38]
Earth volume: (3/4).π.(6371)³ = 1,0832x10¹² km³

Pluto volume: (3/4).π.(1171)³ = 6,555,189,765 km³

How many spheres the size of Pluto does it take to have the same volume as earth?

volume Earth/ volume Pluto = 1,0832x10¹² / 6,555,189,765 = 165.25
3 0
3 years ago
Read 2 more answers
Sarah wants to fence her garden, as shown below. Determine how much fencing to the nearst foot that
coldgirl [10]

Answer:

431.775 ft

Step-by-step explanation:

So basically we should first find the area of the rectangles which is  28 ft * 15 ft, which you get 420. Next for the semicircle, the diameter is 15 but we need the radius so you divide that by 2 to get 7.5 as the radius. Then u multiply 7.5 * π, or 3.14 to get 23.55. But since its a semicircle, or half a circle we divide 23.55 by 2 which is 11.775. Then we just add the results which is 420 ft and 11.755 ft to get a total area of 431.775 ft.

-Hope this helped!

4 0
3 years ago
two times a number added to another number is 20. three times the first number minus the other number is 20. find the numbers
skelet666 [1.2K]

Answer:

y=7

Step-by-step explanation:

We have two numbers,  

x

,

y

. We know two things about them:

2

x

+

y

=

25

3

x

−

y

=

20

Let's add these two equations together which will cancel the  

y

:

5

x

+

0

y

=

45

x

=

45

5

=

9

We can now substitute in the  

x

value into one of the original equations (I'll do both) to get to  

y

:

2

x

+

y

=

25

2

(

9

)

+

y

=

25

18

+

y

=

25

y

=

7

3

x

−

y

=

20

3

(

9

)

−

y

=

20

27

−

y

=

20

8 0
3 years ago
A computer programmer had two files with a total size of 76.75 gigabytes. If one of the files was 35.45 gigabytes, how big is th
shtirl [24]

Answer:

41.30

Step-by-step explanation:

 76.75

- 35.45

______

41.30

6 0
2 years ago
How many solutions does the following have?<br> 1x-5y=15<br> -1+5y=-15
zhannawk [14.2K]
So than there are 

1x -5y =15
-1x +5y = -15 
--------------------assuming term by term we get 
0    0      = 0

so from what result that this system has infinitely many solutions 

hope helped 


3 0
3 years ago
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