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Mekhanik [1.2K]
3 years ago
6

John has 1010 items in his backpack, including 66 books. What is the probability that a randomly selected item from his backpack

is a book?
Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
3 0

Answer:

~6.534653% of randomly selected a book from his bag (I don't know how many decimals you need)

Step-by-step explanation:

Basically you just do (66 (books) /1010 (total items)) * 100 to find your answer because out of the total 1010 items in that bag there is only 66 that are books so its (66/1010)*100 to find your answer, the *100 is added to find the percentage.

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If 5x+6=10, what is the value of 10x+3?<br><br> A) 4<br> B) 9<br> C) 11<br> D) 20
mart [117]
5x+6=10
5x=10-6
5x=4
x=4/5

If we substitute the value of x into the second equation

10x+3
10\times 4/5+3
8+3=11
Therefore, your solution is 11
6 0
3 years ago
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Solve for x 8x−6=15 Give your answer as an improper fraction in its simplest form
kramer

Answer:

\boxed{x = \frac{21}{8} }

Step-by-step explanation:

=> 8x-6 = 15

Adding 6 to both sides

=> 8x = 15+6

=> 8x = 21

Dividing both sides by 8

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5 0
3 years ago
the perimeter of a rectangle is 222 millimeters if the length of the rectangle is 60 millimeters what is the width of the rectan
trapecia [35]
Perimiter=legnth+legnth+width+width=2lengt+2width

lesngh=60
perimiter=60+60+2width
perimiter=120+2widht
222=120+2width
subtract 120 from both sdies
102=2width
divide by 2
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8 0
3 years ago
The Oriental Pearl Tower in Shanghai, China, is a 468-meter high tower with 11 spheres along the tower. Two spheres are larger t
Alexeev081 [22]

The approximate total volume of the two largest spheres on the Oriental Pearl Tower 113105.45 m³.

<h3 /><h3>How to find the volume of a sphere</h3>

The volume of the sphere is calculated as follows:

volume = 4 / 3 πr³

where

  • r = radius

The lower two larger spheres in the tower has a radius of 25 meters and 22.5 meters. Therefore, the total volume of the two largest sphere is as follows:

volume of lower sphere = 4 / 3 × 3.14 × 25³

volume of lower sphere = 196250 / 3

volume of lower sphere = 65416.6666667

volume of lower sphere = 65416.7 m³

volume of higher sphere = 4 / 3 × 3.14 × 22.5³

volume of higher sphere = 143066.25 / 3

volume of higher sphere = 47688.75

volume of higher sphere = 47688.8 m³

The approximate total volume = 65416.7 + 47688.8  = 113105.45 m³

learn more on sphere here: brainly.com/question/13833611

4 0
3 years ago
I will mark brainliestand 40 points! :)
frosja888 [35]

Answer is D) take 5 blocks away from the left side.

There are 8 blocks on the left and only 3 on the right, 8 - 3 = 5

7 0
3 years ago
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