The chance of rain is 20%, the chance of it being sunny is 60%, and the chance of it
being sunny and rainy at the same time is 10%. Calculate, the probability that it is
either sunny or rainy.

Answers

Answer 1

Answer:

0.6 = 60% probability that it is either sunny or rainy.

Step-by-step explanation:

We solve this question treating these events as Venn probabilities.

I am going to say that:

Event A: Rain

Event B: Sun

The chance of rain is 20%

This means that [tex]P(A) = 0.2[/tex]

The chance of it being sunny is 60%

This means that [tex]P(B) = 0.6[/tex]

The chance of it being sunny and rainy at the same time is 10%.

This means that [tex]P(A \cap B) = 0.1[/tex]

Calculate, the probability that it is either sunny or rainy.

This is:

[tex]P = P(A) + P(B) - 2P(A \cap B) = 0.2 + 0.6 - 0.2 = 0.6[/tex]

0.6 = 60% probability that it is either sunny or rainy.


Related Questions

Paul organised an event for a charity.

Each ticket for the event cost £19.95
Paul sold 395 tickets.

Paul paid costs of £6000
He gave all money left to the charity

Work out the an estimate for the amount of money Paul gave to the charity?

Answers

Answer:

The answer is 2000. Hope this helps! If I could have brainliest I'm trying to rank up :)

Step-by-step explanation:

This question asks us to estimate the amount of money Paul gave to Charity.  

To work out an estimate we must start by rounding the numbers we are given to 1 significant figure and the

Starting with 19.95 --> this rounds to 20 and 395 rounds to 400.  

Then we have to multiply these numbers together:

20 x 400 = 8000

3. Finally subtract 6000 from our estimate

8000-6000=2000

The answer is 2000.

PLEASE ASAP I NEED HELP ON THIS PROBLEM

Answers

Answer: to be true  I don't understand this

Step-by-step explanation:

What’s the area? For this

Answers

to figure out the area you have to use the formula 1/2 base times height.

Help me plzzzzzzzzzZzzzzzzzzzZ

Answers

Answer:

Option A is correct answer..

Pls sandhya se baat karado yaar ,

nhi to mai mar jaunga .

Pls sandhya baat karlo na yaar .

ʜᴀᴠᴇ ᴀ ɢᴏᴏᴅ ᴅᴀʏ

❥︎ ʏᴜɢᴀʟᵇᵒˢˢ!

Answer:

its A

Step-by-step explanation:

Determine the values of the variables that will prove the figures similar


Will make brainliest answer!!!! ​

Answers

hi to make the figures similar, the angles will remain the same

set the two given angle degrees together
(4x + 27) = 95
subtract 27 on both sides
4x = 68
divide both sides by 4
x = 17

since A is the only option with x = 17, the answer is A

help please for 50 points

Answers

Answer and Step-by-step explanation:

347

Answer: 347.0

Step-by-step explanation:

I need help ASAP will mark you the brainliest

Answers

Answer:

B

Step-by-step explanation:

<DCE = BCA (vertical angles are congruent)

DC corresponds to CB,

DC/CB = 15/5 = 3

EC corresponds to CA,

EC/CA = 12/4 = 3

Thus, two sides in ∆ABC are proportional to two corresponding sides in ∆EDC, and also, the included angle in ∆ABC and ∆EDC are congruent to each other. Therefore, based on the SAS Similarity Theorem, ∆ABC and ∆EDC are similar.

Kate bought a house for 198,000 and then sold it for 230,000 when you’re later. What is the profit as a percentage?

Answers

Answer:

16.16%

Step-by-step explanation:

calculate the percent change



f(x) = 3x^4 + 19x^3 + 69x^2 + 99x + 26
a) Use the Rational Zeros Theorem to list all the possible rational zeros of f(x). List all possible zeros.
b) Use synthetic division and the possible rational zeros above to obtain the FIRST zero. What is the first zero you used? Show the steps used using synthetic division that you
used to arrive at the answer.
c) Use synthetic division and the possible rational zeros to obtain the SECOND zero. What was the second zero you used? Show the steps used using synthetic division that
you used to arrive at the answer.
d) Find the remaining zeros by using factoring, the square root property, or the
quadratic formula.
e) List all the zeros
Show all the work

Answers

Answer:

sorry

Step-by-step explanation:

The straight line p. passes through the point
(10,1) and it's porpendicular to the line
equation 2x + y=1. find the equation of P

Answers

Answer:

y = 1/2 x  - 4

Step-by-step explanation:

Given the equation of the line as 2x+y = 1

Get the slope

y = -2x+1

Slope of the line is m = -2

Slope of the line P will ne M = -1/-2 (since they are perpendicular)

Slope of line P = 1/2

The equation in point slope form is expressed as;

y - y 0 = m(x-x0)

Given that x0 = 10, y =  1

y - 1 = 1/2(x-10)

2(y-1) = x-10

2y - 2 = x-10

2y = x - 10 +'2

2y = x-8

y = 1/2 x - 8/2

y = 1/2 x  - 4

This gives the equation of line P

Solve 4 5/6 + 9 5/9 for the answer

Answers

Answer:

259 /18 = 14  7/18  ≈14.389

Step-by-step explanation:

=14.999 I believe ....

What three consecutive even integers have a sum of 78

Answers

Answer:

24,26,28

Step-by-step explanation:

78 divided by 3 is 26, which means that 26 is the middle number and the next even number that is lower and bigger are the other two integers. You divide it by 3 because it's 3 consecutive even intergers

I need these questions done. I'm lost. And all my points are gone pls help............................................................................

Answers

Answer:

Step-by-step explanation:

(x+1)(x+6)/(x+1) = x + 6

(x-19)(x+2)/(x+2)= x - 19

(x-8)(x-2)/(x-2)= x - 8

Answer:

x+6 x-19 x-8 from top to bottom

Step-by-step explanation:

Hope this helps give brainliest if you can

cuánto es 2/4
[tex]2 \div 4[/tex]

Answers

Answer: 1/2 o .5

Step-by-step explanation:

Answer: 2/4 = 0.5

Espero que ayude

List all number from the given set that are: real number, whole number, integers, natural number, rational numbers and irrational number

(-3, -2/7,0,0.75, square root of 5,2.6, square root of 36)

Answers

3=4+29 and there is your answer

someone pls help me!!

Answers

Answer:

[tex] r = \frac{12\sin 20\degree}{ \sin 35\degree } [/tex]

Step-by-step explanation:

By sine rule

[tex] \frac{r}{ \sin \angle R } = \frac{p}{ \sin \angle P} \\ \\ \frac{r}{ \sin 20\degree } = \frac{12}{ \sin 35\degree } \\ \\ r = \frac{12\sin 20\degree}{ \sin 35\degree } [/tex]

Solve the system of equation 2x + y = -4 and 5x – 3y = 1 by the method of elimination​

Answers

Step-by-step explanation:

first step while implementing the elimination method is to look at the numbers which can be multiplied to which in order to have like terms as solved below

as you can see in equation number 2 that the number three can be multiplied with equation 1 in order to have like terms so you can cancel them out

so , multiply 3 with the whole of equation 1

3( 2x + y = -4 )

= 6x + 3y = -12

( keep in mind the sign of the number)

5x -3 y = 1

now ,

we have

6x + 3y = -12

5x -3y = 1

as you can see that now we have like terms and when we add both these equations the like terms cancel out each other as they have opposite signs ( + - gives you - )

so , once you add the like terms this is what you will get

6x + 5x +3y-3y -12+1

= 11x + 0 - 11

then you can simplify this further for x first

11x = 11

x = 11/11

x = 1

now we have the value of x let's simply further for y

let's take equation 2

5(1) - 3y =1

5 -3y = 1

5-1 = 3y

4 = 3y

4/3 = y

to confirm your values you can put these values in one of the two equations given initially , let's use equation two to check .

5x-3y = 1

( now let's place the values of x and y into the equation and see if our answer is 1 )

5 (1) - 3 (4/3)

= 5 - 4

= 1

it is correct

Which are the solutions to 49x2 – 36 = 0
A. r=
7
ő
C. x=+
7
B. x=
49
36
D. No real solution

Answers

It’s Definitely D if it’s not fart on my face

Can someone tell me what x equals!

Answers

Answer:

12

Step-by-step explanation:

hope u find this helpfull

Answer:

Step-by-step explanation:

x = 12

the triangle was made smaller (i forget what the term is)

it was made smaller by  [tex]1\frac{1}{3}[/tex]

to find that you divide 24 by its equivalent side on the other triangle which would be 18

24 / 18 =  [tex]1\frac{1}{3}[/tex]

to find what x is equal to you have to find the equivalent side on the other triangle. this would be 16. since the triangle with 16 is bigger the equation is:

16 / [tex]1\frac{1}{3}[/tex] = 12

so x = 12

-16t^2 + 121t + 1

Help me pleaseeee!

Answers

You first subtract and a e. E see where that gets you subtract or add the first number

Sophia babysat for 3 5/12 hours on Friday. She babysat for 2 5/6 hours on Saturday. For the following statements, estimate how long Sophia babysat on Friday and Saturday combined. Choose the correct benchmarks and sum.

Answers

Answer:

the answer is c for Friday and 6 3/12 hours for them both combined

Step-by-step explanation:

because 3 5/12 is closest to 3 1/2=3 6/12

for fir day and Saturday day combined it would be 6 3/12

because 5/6 is 10/12 and 5/12 + 10/12 is 15/12 which is also 1 3/12

so add 3 +2=5 and then add the fraction 1 3/12 which would be 6 3/12 hours

If f(x) = 2(3x) + 1, what is the value of f(2)?

Answers

f(2)=2(3*2)+1
f(2)=2(6)+1
=13
answer is 13

For these questions find the probability of drawing the given cards at random from a standard 52-card deck under each condition: (a) with replacement and (b) without replacement. Write your answers as fractions in simplest form.


2) A club, then a spade

a. With replacement


b. Without replacement


3) An ace, then a queen

a. With replacement


b. Without replacement

Answers

Answer:

2

a) 6.37%

b) 6.25%

3

a) 0.60 %

b) 0.59 %

Step-by-step explanation:

2 )

a) With replacement

Probability of extracting a club is 13/52

Probability of extracting a spade is 13/51

13/52 * 13/51

= 6.37 %

b) Without replacement

13/52 * 13/52

= 6.25 %

3) With replacement

Probability of extracting a ace is 4/52

Probability of extracting a queen is 4/51

4/52 * 4/51

= 0.60 %

b) Without replacement

4/52 * 4/52

= 0.59 %

Match the coordinates with the points on the coordinate plane

Answers

Answer:

Step-by-step explanation:

[tex](-2\frac{1}{2},3\frac{1}{2})[/tex]

Since, x-coordinate is negative and y-coordinate is positive, point will lie in the 2nd quadrant.

Answer is point P.

(-3, 6)

Point L represents the given coordinates.

[tex](-4\frac{1}{2},2)[/tex]

Point P represents the given coordinates.

[tex](2\frac{1}{2},2\frac{1}{2})[/tex]

Since, x and y coordinates are positive, point will lie in the 1st quadrant.

Point Q represents the given coordinates.

[tex](-1\frac{1}{2},-3\frac{1}{2})[/tex]

Since, both x and y coordinates are negative, point will lie in the 3rd coordinate.

Point R represents the given coordinates.


Mark brought chocolate and vanilla cupcakes to school for his birthday
100 students decided to take a cupcake, and 80% of them picked vanilla.
How many people picked a vanilla cupcake?

Answers

Answer:

80 students decided to take a vanilla cupcake.

Step-by-step explanation:

100 * 0.80 = 80

please help this is so confusing

Answers

Answer:

Triangle #2

Step-by-step explanation:

Translation involves the movement of a triangle without changing its direction or shape. It basically involves the sliding of a triangle, so Triangle 2 satisfies the definition of translation.

what is -3(2m-5)=1/2(-12m+30)

Answers

Answer:

answer is 0

Step-by-step explanation:

-6m+15=-6m+15 !!!!!!!!!!

What is the measure of angle Q?
A. 27°
B. 33°
C. 40°
D. 120°

Answers

Answer:

27 degrees ( option A)

Step-by-step explanation:

It is the only option that is smaller than 33 degrees,  (which is because SRT ~ PQB) and it is dilated by a fraction

Answer:

q=33

Step-by-step explanation:

is the correct answer because we can see that r=q


Payal is putting books on her bookshelf. She has 32 books.
She puts 8 books on each shelf. How many shelves have 8
books?
Your answer
1 point
cl

Answers

Answer:

4

Step-by-step explanation:

[tex]04\\ 8\sqrt{32} \\[/tex]

Zeros of the function of x = -6, and x = -2

Answers

Answer:

Step-by-step explanation:

If x=(-2,-6) are zeros of the function y then

y=(x+2)(x+6) which expands to

y=x^2+8x+12

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