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Natali [406]
3 years ago
14

John has a spinner with eight equal sectors with labels from 1 to 8. he spins the spinner once. what is the probability that he

gets a number less than 4 or a multiple of 4?
3/4
3/32
1/2
5/8
Mathematics
2 answers:
azamat3 years ago
7 0

Answer:

3/32

Step-by-step explanation:

Labels from 1 to 8:

The probability that he gets a number less than 4 (1, 2, 3) is 3/8

The probability to get a multiple of 4 (4, 8) is 2/8 = 1/4

So

The probability that he gets a number less than 4 or a multiple of 4:

= 3/8 x 1/4

= 3/32

Answer

3/32

Elan Coil [88]3 years ago
6 0

Answer:

The answer is 5/8.

I saw an answer that gave 3/32, and since I knew that was wrong I wanted to give my answer to not lead others astray.

Step-by-step explanation:

There are 8 numbers john can pick.

Numbers less than 4 are (1, 2, 3)

Numbers that are a multiple of 4 are (4, 8)

The word "or" in the question implies addition, and adding 3/8 and 2/8 yields a result of 5/8. This is also the answer in the test that I took.

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1. Sort the numbers into 2 groups, rational or irrational. Write the numbers in the appropriate bubble.
rodikova [14]

Answer:

[see below]

Step-by-step explanation:

  • All natural numbers, whole numbers, integers, fractions (with integers), and numbers with terminating or repeating decimals are rational.
  • Irrational numbers cannot be written as fractions with integers. This includes non-germinating and non-repeating decimals.

Rational Numbers:

  • 0.8
  • 64
  • 0 (it can be written as \frac{0}{1})
  • 32
  • -19
  • -100
  • 3
  • 7
  • 175
  • 2
  • 6
  • 12.67
  • 1121
  • 12
  • 5
  • 3/7

Irrational Numbers:

  • 2.343443444...
  • π

Hope this helps.

6 0
3 years ago
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jeyben [28]

Answer:

Step-by-step explanation:

8 0
3 years ago
Sara tried to evaluate 21 : 7 x 8 step-by-step
nlexa [21]

Answer: Sara multiplied by 3 when she should have multiplied by 8.

Step-by-step explanation:

21 : 7*8

7*8 = 56

21 : 56

The simplest form of this ratio is 3 : 8

6 0
3 years ago
How many cans of cat food will sophie use after 12 days
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Answer: prob 36 or 24

4 0
3 years ago
Read 2 more answers
Find the altitude of a cylinder with with a radius of 9 and a surface area of approximately 791.68 units2.
Vika [28.1K]

In this question , it is given that we have a cylinder with with a radius of 9 and a surface area of approximately 791.68 units square.

The formula of surface area of cylinder is

A= 2 \pi r^2 + 2 \pi r h

Substituting the values of A and r, we will get

791.68 = 2* \pi * 9^2  + 2 * \pi * 9*h&#10;\\&#10;791.68 = 162 \pi + 18 \pi h&#10;\\&#10;791.68 -162 \pi = 18 \pi h&#10;\\&#10;h = \frac{791.68 -162 \pi}{18 \pi}&#10;\\&#10;h =5 units

So the height of the cylinder is 5 units .


4 0
3 years ago
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