A bag of marbles contains 5 red, 3 blue, 2 green, and 2 yellow marbles.What is the probability that you choose a red marble and then a green marble assuming you replace the first marble?
A)
1
24
B)
5
72
C)
5
66
D)
5
6

Answers

Answer 1
Answer: 5/12 for red and 2/12 for green
multiple both 10/144
the answer is B 5/72

Related Questions

How do I get the answer to 3(-2-3x)=-9x-4
Which equation is equivalent to the equation 6x + 9=12
For a given input value b, the function g outputs a value a to satisfy the following equation. a-7=3(b+2)a−7=3(b+2)Write a formula for g(b) in terms of b
You plan to buy $12,000 in computers at a local chain store. There are two stores located about the same distance from your office but in different cities with different tax rates. One city has a tax rate of 7% and the other has a tax rate of 8.5%. What percent can you save by going with the lower tax rate? Round your answer to the nearest tenth of a percent, if necessary.
A pelican consumes 33 1/3% of its body weight in one meal. Write this percent as a fraction in simplest form.

Which is a solution to (x-3)(x 9)=-27

Answers

distribute
(x-3)(x+9)=-27
x^2+6x-27=-27
add 27 to both sides
x^2+6x=0
factor out x
x(x+6)=0
set each to zero
x=0
x+6=0
x=-6

x=0 and or -6


x=-6 or 0

Factor : 49c^2 - 25d^6

Answers

49c^2 - 25d^6
(7c)^2 - (5d^3)^2
(7c + 5d^3)(7c - 5d^3)

The answer is: (7c + 5d^3)(7c - 5d^3).
Hello,

49c^(2)-25d^(6)=(7c)^2-(5d^3)²=[7c-5d^3][7c+5d^3]

Of the 1,000 students in a local college, 420 own brand X mobile phones and 580 own brand Y mobile phones. Of these students, 80 own both brands of mobile phones. Find the probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone.2/14

5/21

3/28

4/29

Answers

Answer: The probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone is 4/29.

Step-by-step explanation:

Since, the total number of students, n(s) = 1,000

The number of students who have X mobile phones, n(X) = 420,

And, number of students who have Y mobile phones, n(Y) = 580,

Thus, the probability of the student that has Y phones,

P(Y)=(n(Y))/(n(S))=(580)/(1000)=0.58

While, the number of students who have both phones, n(X∩Y) = 80

Thus, the probability of the student who has both phones,

P(X\cap Y)=(n(X\cap Y))/(n(S))=(80)/(1000)=0.08

Hence, the probability that a student chosen at random has a brand X mobile phone given that he has a brand Y mobile phone.

P((X)/(Y))=(P(X\cap Y))/(P(Y))

=(0.08)/(0.58)

=(8)/(58)=(4)/(29)

Hence, the required probability is 4/29.

If we were to put this in terms of a venn diagram, we would have 360 owning only brand X, 500 owning only brand Y, and 80 in between, owning both. Therefore, 80 out of the 580 owners of brand Y may have X as well, which we put into fraction form 80/580, and reduce to 4/29.

Simplify -7 + [5 + (-12)÷3] -6 -34/3 -8

Answers

You will start with division

(-12)/3 = -4

and than everything in the [ }

so that means 5 + -4 = 1

-7 + 1

The answer is -6

-7 + [5 + (-12) / 3] - 6 - 34/3 - 8 = -7 + [5 - (12/3)] - 76/3 = -7 + [5 - 4] - 76/3 = -7 + 1 - 76/3 = -94/3 or -37 1/3

Which is bigger 31/100 or 5/10

Answers

♥ Solve:
31/100
50/100
50 is larger than 31
Therefore 5/10 is larger than 31/100
31/100
5/10=50/100

Is 50 bigger than 31? Yes.

5/10>31/100

A gym charges $35 per month after an initial membership fee. A member has paid a total of $250 after 6 months. Write an equation that gives the total cost of a gym membership as a function of length of membership (in months). Find the total cost of membership after 10 months.

Answers

The required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Total charges of gym = Initial service fee +  $ 35 per month

Thus, the total charges for 6 months = Initial service fee +  35 × 6 =  Initial service fee + 210

According to the question,

Initial service fee +  210 = 250

⇒ Initial service fee = 250 - 210 = $ 40

Hence, the total charges for the gym for x months = 40 + 35x. Here, y represents the total charges for x months,

⇒  y = 40 + 35 x

The total cost of the membership after 10 months will be calculated as:-

y = 40 + 35 x

y = 40 + 35 x 10

y = 390

Therefore, the required equation is, y = 40 + 35 x, and the cost for 10 months will be 390.

To know more about Expression follow

brainly.com/question/723406

#SPJ1