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swat32
3 years ago
6

10 cards are numbered from 1 to 10 and placed in a box. One card is selected at random and is not replaced. Another card is then

randomly selected. What is the probability of selecting two prime numbers?
A. 2/15



B. 4/18



C. 7/90



D. 1/10
Mathematics
1 answer:
Nataliya [291]3 years ago
3 0

Answer:

2/15.

Step-by-step explanation:

The  prime numbers in the first 10 numbers are: 2, 3, 5, 7 . That is a total of 4.

Prob( first number drawn is prime) = 4/10 = 2/5.

Prob( second number drawn is prime) = 3/9 = 1/3.

Required probability  is 2/5 * 1/3

= 2/15.

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Answer:

-1/3

Step-by-step explanation:

6 0
3 years ago
What us the greatest common factor of 27 and 36?
Wittaler [7]
Hello!

To find the greatest common factor, you must find all the factors of both numbers and see which similar one is the greatest.

27: (1,27) (3,9)
36: (1,36) (2,18) (3,12) (4,9) (6,6)

As you can see the, the greatest common factor is 9.

I hope this helps!
6 0
4 years ago
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2x2x3=12 12x8=96 so the bale of hay weighs 96 pounds.
6 0
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Jackson bought 3 pounds of candies for $9.75 What was the price of these candies in dollars per pound?
Stels [109]
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4 years ago
Julio makes a scale drawing of the kitchen floor to determine how
tatuchka [14]

The scale drawing of Julio's kitchen would change the kitchen size

The actual area is 243 square feet

<h3>How to determine the actual area of Julio's kitchen?</h3>

The parameters are given as:

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  • Width = 3.375 inches

Start by converting the dimensions to feet using the scale ratio

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The area is then calculated as:

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This gives

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Actual Area = 243 square feet

Hence, the actual area is 243 square feet

Read more about scale drawings at:

brainly.com/question/8975579

4 0
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