HELPPP PLEASE !!!!
A school class went on a field trip to see a magician perform there were 17 females 20 males in the class the magicians randomly selected a volunteer from the audience in which had 52 females and 68 males given that the randomly selected audience member is a student from the class which equation can be used to find the probability p that the person also a female?
( I'll give brainly to whoever answers it correctly )
Answers
Answer:
P(B)= 17/20
Step-by-step explanation:
The audience of the magic show is conformed by a total of 120 people, 52 of which are female and 68 are men.
Within the audience there is a school class of 37, of these students, 17 are female and 20 are male.
If a random member of the audience is selected as a volunteer:
Let "A" represent the event that "the selected volunteer is a student of the class"
And "B" the event that "the selected student is female"
You have to calculate the probability of the selected volunteer being female, given that it is a member of the school class.
Symbolically:
P(B|A)
Using the formula of conditional probabilities you can calculate it as:
P(A∩B)= =
As you can see the probability of the event "The volunteer is female given that it was a student of the school class" means that you already know the selected volunteer was a student and only needed to calculate the probability of that student being female.
P(B)= 17/20
I hope this helps
Related Questions
Alice, Bernard, and Colin draw 3 cards each from nine cards numbered from 1 to 9.
Alice: The product of my numbers is 48.
Bernard: The sum of mu numbers is 15.
Colin: The product of my numbers is 63.
Find the three cards that each of them draw.
Answers
Answer:
Colin 9 7 1
Alice 2 8 3
Bernard 4 5 6
Hope this helps!!
Please mark brainlist!!!!
Simplify the following by collecting together like terms.
3p-4q+9p-6q+1
Answers
Answer:
12p-10q+1
it's saying im being rude
Answer:
12p - 10q + 1
Step-by-step explanation:
To find the answer, we add up numbers that have the same letter attached to them, since those are like terms.
Let's first add the numbers that have a p next to them.
3p + 9p = 12p
Are new expression is 12p - 4q - 6q + 1
Now let's add the numbers with q's next to them.
- 4q + -6q = -10q
Now we have the expression 12p - 10q + 1
There are no more numbers that have the same letter attached to them, so that is the simplest form it can be in.
12p - 10q + 1
Solve for x.
−5/ 12x−1/6≤5/6
Drag and drop a number or symbol into each box to correctly state the solution.
Answers
The turn signal Car A blinks 7 times every 5 seconds. The turn signal on Car B blinks 5 times every 4 seconds. In one minute, how many more times will the turn signal blink on Car A than the turn signal on Car B?
PlS AOLVE ASAP! Will Give Brainliest
Answers
Answer:
Car A blinks 36 more times than Car B
Step-by-step explanation:
To figure out how many times Car A blinks, you have to divide 60 / 5 which equals 12. Since it blinks 7 times per 5 seconds, you would have to multiply 7 by 12, which equals the answer for the first part, 84 times per minute.
To figure out many times Car B blinks, it's the same way. But this time, you multiply 12 by 4, since it blinks 5 times every 4 seconds. Which in that case is 48 times per minute.
So, 84 - 48 = 36 times more than Car B
Answer:
car A blinks more times than Car b
Step-by-step explanation:
8. A bag contains 2 black marbles, 3 red marbles and 4 orange marbles. Two marbles are drawn from the bag, without replacement. Use tree diagram to find the probability that the marbles drawn are of different colours.
Answers
Answer:
50% chance to draw two different colors from the bag.
june mixed 1.2kg of jellybeans with 0.84kg of almonds and packed them equally into 12 small bags. find the mass of 3 such bags. show your work
Answers
Answer:
Step-by-step explanation:
1.2+0.84=2.04 kg
2.04/12=
0.17kg
0.17*3=0.51kg
Hope this helps!
1.2+0.84=2.04
2.04/12=0.17
0.17*3=0.51
so, 0.51 kiligrams
You are ordering T-shirt with your school's mascot printed on them. Each T-shirt cost $4.75. The printer charges a setup fee of $30 and $2.50 to print each shirt. write two expressions to represents the total cost of printing n T-shirts
please help ASAP
if you can please explain
Answers
Answer:
1. n(4.75+30+2.50)
2. 4.75n+30n+2.50n
Step-by-step explanation:
n is the number of shirts they buy. It says that each shirt costs $4.75, and for each shirt they add an extra $30 and $2.50 for the setup fee and to peint each shirt. The word each shows that you have to times. You have to times n by each number or to make it shorter put all three numbers in parenthesis put the n ouside of the parenthesis.
Hope that helps.
each shirt (n) is $2.50 so to find the total for the shirts you would multiple $2.50 by (n) the number of shirts. The fee of the printer is only charged once so you would just add an extra $30 to the amount you got.
List the first five terms of the sequence for a1= -2n-1 +5, if n>2
Answers
Ans: an = (−3)n 11111
b. 1, 2, 6, 24, 120, 720,··· Ans: an = 1
n! 23456
c. −3, 4,−5, 6,−7,··· Ans: an =(−1)nn+1
n+2 1111
d. 1, 2,3, 4,5, 6,7, 8,··· Ans: an = (n)(−1)n+1
1 9 25 49 81 121 e. 2, 16, 36, 64, 100, 144 ···
Ans: an = (2n − 1)2
A micron is 1x10 -6 How do you write that number and unit in standard form?
Answers
Just add however many 0s at the end u need:)
Answer:
If the answer is 1 times 10 then minus 6 the answer to this will be 4
But if the question is 1 times 10 to the power of -6 then the answer will be 1/1000000
Step-by-step explanation:
It depends on how you are setting up the problem
Look at what the question is asking and choose based on that
hope this helps
Pre-Algebra
DUE URGENTLY
mathematics
15 pts
Answers
Answer:
-8x - 8 is the only expression equivalent to 16x - 12 - 24x + 4
Step-by-step explanation:
The easiest way you can do this problem is by substituting any number for x, for all of the expressions. That way you can compare the expressions. Let's choose to use 1 for example. So, x = 1.
If x = 1, you plug 1 in for all the x's. So, 16x - 12 - 24x + 4 would look like
16(1) - 12 - 24(1) + 4 = -16. Now let's see if any of the other expressions would ALSO equal -16 if x = 1.
4 + 16(1) - 12(1 + 2(1)) = 6
40(1) - 16 = 24
16(1) - 24(1) - 4 + 12 = 0
-8(1) - 8 = -16
Therefore, -8x - 8 is the only equivalent expression :)
Math isn't my strongsuit Pt.3 (Final)
Answers
Answer:
D
Step-by-step explanation:
(7)2.5-(12/3+6)
(7)2.5-(4+6)
17.5-10
7.5
Hope this helps!
plz help like fr help
Answers
Answer:
the answer is (2, 28)
Step-by-step explanation:
hope this helps you!
Please help I can't figure this one out. NO LINKS
Answers
Answer:
See below.
Step-by-step explanation:
22, 23, 23, 23, 24, 24, 25, 26, 26, 26, 28
Find the middle number. That's the median.
24 is in the middle, so 24 is the median.
-hope it helps
Drag each graph to show which transformation was applied to the original figure.
Each graph is the result of one transformation.
On a coordinate plane, a triangle has points (negative 1, negative 1), (negative 4, negative 1), (negative 1, negative 3).
CLEAR CHECK
Translation
Reflection
Rotation
Answers
Each graph is the result of one transformation. 1 and 4 are Reflection. 2 , 3, and 5 are rotation and 6 is translation.
How reflection across axis works?When a graph is reflected along an axis, say x-axis, then that leads the graph to go just on the opposite side of the axis as if we're seeing it in a mirror.
Thus, if you're reflecting a point (x,y) along the x-axis, then its x abscissa will stay the same but y ordinates will negate. Thus (x,y) turns to (x, -y)
Similarly, if you're reflecting a point (x,y) along the y axis, the resultant image of the point will be (-x,y)
1st one would be Reflection
2nd would be Rotation
3rd would be Rotation
4th would be Reflection
5th would be Rotation
6th on the bottom would be translation
Learn more about Reflection;
https://brainly.com/question/15487308
#SPJ2
Answer: This should help
Step-by-step explanation:
10 - (5 3/4 - 1 5/6) =
Answers
Answer:
Step-by-step explanation:
Hi!
So first we do the parenthesis
( [tex]5\frac{3}{4}[/tex] - [tex]1 \frac{5}{6}[/tex]) =
Since 4 and 6 ≠ (does not equal to)
We change 4 and 6 to a number they have in common so, that number is 12 which is the lcm (least common factor). We are going to multiply 3 for each number (3 and 4) and 2 for 5 and 6, so
3/4 x 3 = 9/12 = 5 9/12
5/6 x 2 = 10/12 = 1 10/12
Now we substract,
5 9/12
- 1 10/12
_________
4 1/12
now that we have this answer we will substract 4 1/12 from 10 which would be
5 11/12
hope this helped!! Good luck! Brainliest? :) <3
Which statement represents the simplified form of the given equation and correctly describes the solution? 9x-4=2(8+4x)+7
A.
x = 19; exactly one real solution
B.
16 = 16; infinite real solutions
C.
16 ≠ 11; no real solution
D.
x = 27; exactly one real solution
Answers
Answer:
D
Step-by-step explanation:
If you take 2(8+4x)+7 and work it out you get 23+8x so when put into the problem you add 4 to 23 to get 27 and subtract 8x from 9x to get 1x so 1x divided into 27 is 27.
Answer:
D
Step-by-step explanation:
hope this helps
Please help me - look at picture
Answers
Answer:
x = -1
y = -9
Step-by-step explanation:
Add each linear equation:
Sum: 5x = -5
Divide each side by 5:
Quotient: x = -1.
Substitute x = -1 into the first equation:
4(-1) - y = 5
Solve:
-4 - y = 5
Add 4 to both sides of the equation:
-y = 9
y = -9.
Check with the second equation:
-1 + -9 = -10.
Correct.
25:30= _:24
very confusing for me and I need help with others ones
Answers
first, find the ratio of 30/24
30/24=
15/12=
5/4
25 divided by 5/4= 20
Both 30 and 24 are divisible by 6 and 25 is divisible by 5. If we simplify the first one we get 5:6 so just think of 5:6 and you get 20:24
Choose the best estimate for the mass of a raisin.
OA) 0.2g
O B) 2g
OC) 20 g
OD) 200 g
Answers
Answer:
A) 0.2g
Step-by-step explanation:
[tex]{.}[/tex]
Answer:
A or b
Step-by-step explanation:
2grams is .004lbs and the others are simply unreasonable
32°, 32°, 148° and 148° are the interior angles of a _____________________ or a _____________________.
Answers
Answer:
equilateral isophigaly
Step-by-step explanation:
please help me I don't understand this
Answers
Answer:
get gooder
Step-by-step explanation:
learn how to do it
Answer:
1014yd
Step-by-step explanation:
The equation for finding the surface area of a square is Length x Width,
But a cube has 6 squares in it. So in that case we would do length x width x 6. When you plug that in you would put
13x13x6=1014
Please help frl this time!
Answers
Answer:
The answer is D.
Step-by-step explanation:
All the numbers starting from 1 to infinity are known as natural numbers. Answer D is not a number but all the other answers are.
Teresa tried to find the solution to a system of equations with substitution but made an error in the process. After looking closely at Teresa's work, choose the answer that best describes the mistake she made.
A. Teresa made an error in one of her first steps when she added 2x to both sides (she should have subtracted 2x from both sides).
B. Teresa should not have subtracted 1 from both sides of the equation when trying to find x, she should have added 1 to both sides.
C. During the last step in solving for x, Teresa should have divided both sides by -4 (not divided both sides by 5). X should equal -5/4.
D. When substituting the value for x into one of the equations, Teresa should not have multiplied the fraction by 3. She should have added 3 to the fractions.
Answers
Answer: The answer is A.
Step-by-step explanation: She should of subtracted 2x on both sides, not add.
-47.90+86= ? i need some more help illl give double pionts
Answers
Answer:
38.1 is the correct answer
let me know what else u need help on im happy to help.
Step-by-step explanation:
hitt me with that brainliest ; )
What is 8−2⋅3+7
Needs Help badly
Answers
8-6+7=9
so 9 is your answer!!
A 1 7/9m piece of yellow string is tied to a 2m piece of blue string, and then divided into 3 equal lengths. How long is each piece?
Answers
What is x3+y3+z3=k
What the number for k
A.2
B.42
C.32
D.13
Answers
I think its c.... yeah
Answer:
42
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp
Answers
Answer:
The answer is: A. ($38.40)
Step-by-step explanation:
640 times 0.03 times 2
3% as a decimal is 0.03 because think of 100 whenever you see these numbers as percentages. So if you had 30% you would have 0.30 but 3 is only 0.03 so then you just multiply by the number of years which is 2. Hope this helps!!!
The area of a poster board is x squared plus 3 x minus 10 inches. The width is x-2 inches.
The expression that represents the length of the poster board is __________________.
If x=14; then the dimensions for the poster board would be
12,19
Answers
Answer:
12Inch and 19 inches
Step-by-step explanation:
also please give me the photo if you have it
1. 1 +2r =
2. 12 = 18 - d
3. 5b + 10 = 30
Answers
Answer:
1. r=anything
2. d=6
3. b=4
Step-by-step explanation:
Answer:
1. r=3
2. d=6
3. b=4
Step-by-step explanation:
