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QveST [7]
2 years ago
8

A bag contains 40 red and green marbles. The ratio of red marbles to

Mathematics
2 answers:
Hunter-Best [27]2 years ago
5 0

Answer:

39/40

Step-by-step explanation:

Since 39 out of 40 marbles are green, the probability of randomly choosing green is 39/40.

However, the probability becomes 100% when you look into the bag and choose a green marble. (Unless you are blind or unable to distinguish blue from green, in which case the probability remains 39/40.)

Scilla [17]2 years ago
3 0
The answer is A or 10
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if their is a family of 9 and their are 4 boys and 5 girls what is the percentage percentage of both male and female
gregori [183]
Boys 4/9 = 44.44% Girls 5/9 = 55.55%

Fraction to percentage: Divide the top by the bottom then multiply the result by 100
6 0
3 years ago
Can someone solve the whole thing for me please it isnt a test its an online assignment and ill give you brainliest if you solve
Temka [501]

Answer: do you have a email so i can send it to you??

Step-by-step explanation:

3 0
3 years ago
What is the salon to the equation? 15 = |x| - 5
earnstyle [38]

Step-by-step explanation:

15 = |x| - 5

|x| - 5 = 15

|x| = 15 + 5

|x| = 20

x = ±20

x = -20 or 20

Option → B

5 0
2 years ago
Read 2 more answers
Rewrite in standard form of a circle<br> x^2-6x+y^2-4y-12=0​
cricket20 [7]

Answer: (x-3)^{2} + (y-2)^{2} = 5^{2}

Step-by-step explanation:

The standard form of equation of a circle is written in the form:

(x-a)^{2} + (y-b)^{2} = r^{2}

where a and b are the coordinates of the center and r is the radius.

All we need to do is to covert the given equation into this form, how do we do that?

We will achieve this by using the completing method of solving quadratic equation.

Firstly re - write the equation , that is

x^{2} - 6x + y^{2}-4y = 12

The next thing is to Complete the square for each of  x and y

How do we do this ?

i. multiply the coefficient of x and y by 1/2

ii. square the results

iii. Add the result to both sides of the equation , that is

x^{2} - 6x + 3^{2} - 4y + 2^{2} = 12 +3^{2}+2^{2}

The next thing is to write the Left hand side of the equation as a perfect square binomial and simplify the Right hand side. That is

(x-3)^{2} + (y-2)^{2} = 25 , that is

(x-3)^{2} + (y-2)^{2} = 5^{2}

Which is now in standard form of the equation of a circle.

6 0
3 years ago
Need help with 76 and 78 please. Thank you . I will give a Brainly and extra points.
Svet_ta [14]

The set shows the value of the numbers will be:

a. 9

b. 65

<h3>How to illustrate the set?</h3>

76. It should be noted that the value of n(A × B) will be:

n(A) = 3.

n(B) = 3..

n(A × B)

= 3 × 3

= 9

78. n(A) = 13

n(B) = 5

n(A × B)

= 13 × 5

= 65

Therefore, the values are 9 and 65.

Learn more about set on:

brainly.com/question/2166579

#SPJ1

7 0
1 year ago
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