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nekit [7.7K]
3 years ago
7

Christina rolls a number cube twice.What is the probability she rolls a prime number and then an odd number?

Mathematics
2 answers:
Arisa [49]3 years ago
5 0
The probability is 3/6 (1/2) as there are 3 prime numbers on a dice (2,3,5) and also 3 odd numbers on a dice (1,3,5)
ella [17]3 years ago
3 0

Christina rolls a number cube twice.

Number of outcomes in a cube = 1,2,3,4,5,6 = 6 outcomes

Prime numbers = 2,3,5 = 3 outcomes

Odd numbers = 1,3,5 = 3 outcomes

probability that she rolls a prime number = \frac{outcome of a prime number }{total number of outcomes} =\frac{3}{6} = \frac{1}{2}

probability that she rolls a odd number = \frac{outcome of a odd number }{total number of outcomes} =\frac{3}{6} = \frac{1}{2}

probability (a prime number and then an odd number) =

\frac{1}{2} * \frac{1}{2} = \frac{1}{4}

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Dan bought 20 bunches of seedless green grapes for $48.00 . How many bunches can buy if she has $12.00?
hammer [34]

Answer:

Step-by-step explanation:

$12(20b/$48)=5b

3 0
3 years ago
A line that includes the point (-3,-4) and (-4,f ) has a slope of 6. What is the value of f?
Eduardwww [97]

Answer:

f = -10

( -3, -4) ( - 4 , -10)

Step-by-step explanation:

Formula for slope

m =( y_2 - y_1)/(x _2 - x _1)

m = 6

6 = (y_2 - y_1) / (x _2 - x_1)

Substitute the points

( -3 , -4) ( -4 , f)

x_1 = -3

y_1 = -4

x_2 = -4

y_2 = f

Insert the values into

6 = (y_2 - y_1) / (x_2 - x_1)

6 = (f - (-4))/ ( -4 - (-3)

6 = ( f + 4)/ ( -4 + 3)

Cross multiply

6 ( -4 + 3) = f + 4

6 ( -1) = f + 4

-6 = f + 4

-6 - 4 = f

f = -6 - 4

f = -10

( -3 , -4) ( -3 , f)

The value of f is -10

( -3 , -4) ( -3 , -10)

8 0
3 years ago
A rectangular park of length 60 m breadth 50 m encloses w volleyball court of length 18 m and breadth 10 m. Find the area of the
Zanzabum

Given

A rectangular park of length 60 m breadth 50 m encloses with volleyball court of length 18 m and breadth 10 m.

To find:

The area of the park excluding the court at the rate of Rs 110 per square meter.​

Solution:

Area of a rectangle is:

Area=length \times breadth

Area of whole park is:

A_1=60 \times 50

A_1=3000

Area of volleyball court is:

A_2=18 \times 10

A_2=180

Now, the area of the park excluding the court is:

A=A_1-A_2

A=3000-180

A=2820

Therefore, the area of the park excluding the court is 2820 square meter.

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