The probability of event X is 30%. The probability of event Y is 40%. If events X and Y are mutually exclusive, what is the probability of event X or Y

Answers

Answer 1

The probability of event X or Y is P = 0.7, or, in percentage form, the probability is 70%.

How the get the probability of event X or Y?

First, two events are mutually exclusive if these events can't happen at the same time.

This means that if happens X, with a 30% of probability, then Y can't happen.

If happens Y, with a 40% of probability, then X can't happen.

Then the probability of X or Y (the probability that one of these two events happens, not both) is just the addition of the two individual probabilities.

Then we have:

P(X or Y) = 0.3 + 0.4 = 0.7

Or, in percent form, we get:

P(X or Y) = 70%

The probability of event X or Y is just 70%.

If you want to learn more about probability:

https://brainly.com/question/25870256

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Related Questions

With explanation please help

Answers

Answer:

first you simplify the first part which will be

(15)^2-(18+9)*(6)

225-27*6

225-162

Answer will be 63

I showed my work :)

To create a model of an artery, a health teacher uses the scale 2.5 cm : 0.75 mm. If the diameter of the artery is 2.7 mm, what is the diameter on the model?



a
9 m
b
90 cm
c
18 cm
d
9 cm

Answers

Answer: 9 cm

Step-by-step explanation:

I took the test

A one year member ship to your local gym costs $539. there is an initial fee of $35. write an equation tou can use to fund out how much you pay per month ​

Answers

$539 - $35 = $504

$504 : 12 = $42

Per month you pay $42.

Find a slope of each line (each block is one unit):

Answers

Answer:

The slope is -3

Step-by-step explanation:

We have two points

( -1,2) and (1,-4)

We can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( -4 -2)/ ( 1 - -1)

   = ( -4-2)/ (1+1)

   = -6/2

   = -3

15% of 130 using the decimal method

Answers

Answer:

0.3846 is a decimal and 38.46/100 or 38.46%is the percentage for 50/130

Step-by-step explanation:

Pls mark me in brain list

Answer:

0.3846 is a decimal and 38.46/100 or 38.46%is the percentage for 50/130

Step-by-step explanation:

O is the center of a circle if angle AOB =55° what is angle ACB=?​

Answers

Answer:

answer is 55/2 which is 27.5 degree

Step-by-step explanation:

angle subtended at center is double the angle subtended on aby other part of the circle...

I need help on this pleasee​

Answers

Answer:

slope is 6/0 which is undefined

Step-by-step explanation:

Please help!!

What is the value of Avogado's number?

Answers

Answer:

It will be C because I have it in my notes lol

Step-by-step explanation:

Hope this Helped

Help me with the area of the following triangle??? 25 POINTS question

Answers

-13/2x+1 is the answer which the area

How to find it simple:

Do 1/2*3x-4

then use that answer and multiple it with the height which is 2x+1 and you get the answer.


Find the highest common factor of 35 and 8C.

Answers

Answer:

Factors of 35 = 1, 5, 7 and 35

Factors of 8= 1, 2, 4, 8.

common = 1

Four friends go out to lunch together. Mike orders a personal pizza with 2 toppings for $7.00. Dustin orders a personal pizza with 5 toppings for $9.25. Lucas orders a calzone with 1 topping for $5.75. Will orders a calzone with 4 toppings for $8.75. For what number of toppings is the price of a personal pizza the same as a calzone?

Answers

Answer:

Step-by-step explanation:

Four friends go out to lunch together.

For what number of toppings is the price of a personal pizza the same as a calzone?

Let us represent the number of toppings as x

We need to know the price of a personal pizza and the price of a calzone

Mike orders a personal pizza with 2 toppings for $7.00.

2x = $7

x = $7/2

x = $3.50

Dustin orders a personal pizza with 5 toppings for $9.25.

5x = $9.25

x = $9.25/5

x = $1.85

Lucas orders a calzone with 1 topping for $5.75.

x = $5.75

Will orders a calzone with 4 toppings for $8.75.

4x = 8.75

x = 8.75/4

x =2.1875

Simplify (6ab3c)(-abc2).

6b 2c
-6a 2b 4c 3
-6ab 3c 2

Answers

Answer: The simplified version of (6ab3c)(-abc2) is -12a^2 b^4 c^2

Step-by-step explanation:

Answer:

−6a^2b^4c^3

Step-by-step explanation:




Hamburgers cost $4.50 at a football stadium, write an equation that shows the total cost,c of n hamburgers?

Answers

Answer:

c=4.50

Step-by-step explanation:

c=4.50 the answer is at the top.

Answer:

N=$4.50

Step-by-step explanation:

If the price for one hamburger is $4.50, then N=$4.50

Name the like terms
5a, 3, 4d , 2a, 2a, 5c

Answers

Answer:

"Like terms" are terms whose variables (and their exponents such as the 2 in x2) are the same. In other words, terms that are "like" each other. Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.

Step-by-step explanation: Hope this helps

Johnny works after school and earns $8 per hour. He needs at least $2000 to purchase a car so he does not need to take the bus. How many hours does he need to work to reach his goal?​

Answers

2hours

Step-by-step explanation:

2 hours

What is 30% of 42
I’ve given up on my homework please help

Answers

30% of 42 is 12.6.

sorry if wrong.

hope it helps.

have a great day.

Answer:

30% of 42 is 12.6.

Step-by-step explanation:

Ok, so first you need to find the value of 1%. To do that, you divide 42 by 100. That gives you 0.42. So, 0.42 = 1%. TO find 30%, multiply the value of 1% by 30. That's 0.42 * 30, which gives you 12.6. Therefore, 30% of 42 is 12.6!

i dont understand this

Find the slope of the linear function
y=5/4x-9​

Answers

Answer:

[tex]\frac{5}{4} x[/tex]

Step-by-step explanation:

y = mx+ b

m = slope

b = y-intercept

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the straight lines.

The equation of a straight line is given as,

y = mx+c, hence here, m = slope, c = y-intercept..

so, y = 5/4x-9

.m = 5/4

so the slope is 5/4

Use the ordered pairs shown in the table.

Which equation represents the data in the
table?

Answers

Answer:

Option C y = 1.5x

Step-by-step explanation:

If you look closely you will notice that there is a pattern that follows all the time. And the pattern is...

y = 1.5x

Cand someone please help me with this assignment!!!

Answers

Answer:

1. 3

2. 4

3. 2

4. 1

5. 1

7. 3

8. 10?

thats all i know because thats my answers hope it helps

Please do number 3___________________

Answers

9514 1404 393

Answer:

  m∠SVW = 80°

Step-by-step explanation:

3. The sum of same-side interior angles SVW (4x°) and VWT (5x°) is 180°. This can be used to solve for x and to find the angle values.

  4x + 5x = 180

  9x = 180 . . . . . . . . collect terms

  x = 20 . . . . . . . . . . divide by 9

m∠SVW = 4x° = 4(20)°

m∠SVW = 80°

_____

4. Then m∠VWT = 180° -80° = 100° = 5x°.

__

5. Consecutive interior angles are supplementary. ("Same-side" and "consecutive" are used interchangeably in this context.)

27 of the 180 vehicles in a movie theater parking lot are minivans.What percent of the vehicles in the parking lot are minivans?

Answers

Answer:

160

Step-by-step explanation:

Answer:

15 percent

Step-by-step explanation:

First use the equation part over total to get 27/180. Then reduce the equation by dividing both the numerator 27 and the denominator 180 by 9. You are left with 3/20. Then use your calculator or you can work it out long hand to get 0.15. You times 0.15 by 100 if you want to find the percent, leaving you with 15 percent.

I hope this helped! :)

Circles A, B, and C overlap. x is in the overlap of circles A and B. Which of the following are true about x? Check all that apply. x ∉ A x ∈ B x ∉ C x ∈ A ⋃ B x ∈ A ⋃ C x ∈ A ⋂ B

Answers

9514 1404 393

Answer:

  b, c, d, e, f

Step-by-step explanation:

x ∉ A  . . . . .  not true, x is in A

x ∈ B . . . true

x ∉ C . . . true (x is outside the circle labeled C)

x ∈ A ⋃ B . . . true

x ∈ A ⋃ C . . . true

x ∈ A ⋂ B . . . true (x is in the overlap)

Answer:

A is false, every thing else is correct so b,c,d,e,f is your answer

Step-by-step explanation:

have a good day

Determine how many lines of symmetry each object has

Answers

i think the answer is zero

Distribute Terms
-5(x +2)

Answers

-5x-10

hope that helps^^

A movie theater is located at (1,7) after walking 6 blocks to the movie theater you meet you friend at your friend's house. What ordered pair corresponds to the location of your friend's house

Answers

Answer:

(-5,1)

Step-by-step explanation:

Given the coordinate of the location of the theatre as (1,7)

If this was the coordinate after moving 6 blocks to your friend's house, then the coordinate of the location of my friend house will be gotten as thus;

C = (1-6, 7-6) (since he moved 6blocks)

C = (-5, 1)

Hence the required coordinate is (-5,1)

The rectangular floor of a classroom is 40 feet in length and 24 feet in width. A scale drawing of the floor has a length of 20 inches. What is the perimeter, in inches, of the floor in the scale drawing?

Answers

Answer:

Perimeter = 64 inches

Step-by-step explanation:

40':20" = 1':1/2"

24' =12"

20+20+12+12 = 64 inches

What is the area of the triangles? The problems are in the picture below. 15 points and a brainiest.

Answers

Answer:

first: 8 in^2

second: 77 yd^2

third: 225 in^2   (assuming that the larger triangle base =50 in (25 x 2)

Step-by-step explanation:

area = 1/2 x base x height

first:

1/2 x 4 x 4 = 8 in^2

second:

1/2 x 14 x 11 = 77 yd^2

third:

(1/2 x 50 x 18) - ( 1/2 x 18 x 25) = 450 - 225 = 225 in^2

Someone plz help me with this question with an explanation

Answers

To use the angle-angle similarity theorem you need to know 2 corresponding angles of each triangle are the same.

You are already shown that angles H and M are the same.

The sets of corresponding angles are:

H and M, N and I, and O and J

The answer would be angle O and angle J are similar.

8p - p+0.75 = 4 + 0.25

Answers

P=0.5 :) your welcome

solve the system of equations
3x-3y=4
-3x+3y=3

Answers

Answer:

x=y+2/3

Step-by-step explanation:

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