All categories

2 years ago

A number is selected randomly from a container containing all the integers from 10 to 50 . find prime | between 20 and 40)

1 answer:

6 0

Answer: The probability of selecting a prime number between 20 and 40 using the integers from 10 to 50 is 4/41.

First, we need to count the total number of integers involved in the problem. From 10 to 50 (including each) there are 41 numbers.

Second, we have to count the prime numbers between 20 and 40. They are 4 prime numbers: 23, 29, 31, and 37.

Therefore, our probability is 4 out of 41.

You might be interested in

15 points please help

podryga [215]

Answer:

The range is y> 9

Step-by-step explanation:

8 0

3 years ago

In a cookie mix, we find spice cookies, snickerdoodle cookies, and no-bake cookies in a ratio of 3:3:5. If a bag of the mix cont

mixas84 [53]

Answer:

see the explaination

Step-by-step explanation:

let x be 3:3:5

3x:3x:5x

3x is splice cookies

3x is snickerdoodle cookies

5x is no bake cookies

where 5x is equal to 45

x is equal to 45÷5=9

so x is equal to 9

now,

3x = 3×9=27

5x = 45 (given)

now add all, total cookies =27+27+45

=99 cookies

so there are total 99 cookies in a cookie mix

5 0

2 years ago

How could you solve for x in the problem 3x+7=-x-1

lukranit [14]

Hello there!

$3x+7=-x-1\\$

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓

First you had to subtract by 7 from both sides of the equation.

$3x+7-7=-x-1-7$

Simplify

$3x=-x-8$

Then you add by x from both sides of the equation.

$3x+x=-x-8+x$

Simplify

$4x=-8$

Divide by 4 from both sides of the equation.

$\frac{4x}{4}=\frac{-8}{4}$

Simplify it should be the correct answer.

$x=-2$

Answer⇒⇒⇒x=-2

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

7 0

2 years ago

What’s the axis of symmetry and the vertex of x^2-4x-32

konstantin123 [22]

<span>x^2 -4x -32
</span>a =1b= -4c= -32
The x,y points of the vertex are usually referred to as Vertex = (h, k)where h = -b / (2 * a)
h = --4 / (2 * 1)h = 4 / 2h = 2
k = ah^2 +bh + ck =1*4 -4*2 -32k = 4 -8 -32k = -36
vertex = (2, -36)axis of symmetry = x position = 2
Source:http://www.1728.org/quadr3.htm

6 0

3 years ago

Some pleated draperies must be twice as wide as the window they cover. how many square yards of material are needed to cover thi

marusya05 [52]

The window is 2/3 yd by 1 yd, so its area is
.. area = length*width = (2/3 yd)*(1 yd) = 2/3 yd^2

Double that amount of material would be 4/3 yd^2 = 1 1/3 yd^2.

3 0

3 years ago

Read 2 more answers