There are 8 boys and 12 girls in mr.Rossi’s class. One student Will be chosen randomly to represent the class at the conference of seventh grade. What is the probability that the representative will be a girl?

Answers

Answer 1

Step-by-step explanation:

[tex]8 + 12 = 20 \\ probability \: = expected \: outcome \div possible \: outcome \\ \\ \\ \frac{12}{20 } = \frac{3}{4} [/tex]


Related Questions

Write an explicit formula for an, the nth term of the sequence 15, 12,9,....

Answers

Answer:

18-3n

Step-by-step explanation:

18-3(1)=15

18-3(2)=12

etc

etc

I need this answered!
Simplify the following expression:
5s + 72 - 6
use s = -8 and z = -3
I Record your answer in this box:

Answers

Answer:

I believe its -82

Step-by-step explanation:

5 × -8 + 7 × -3 = -82

A polynomial has x-intercepts of 2, 0, and –1, and passes through the point (1, –10). Which functions could represent this graph?

x3 – x2 – 2x

x2 – x – 2

5x2 – 5x – 10

5x3 – 5x2 – 10x

its the last one!

Answers

D or c depends if girl or boy

Answer:

d

Step-by-step explanation:

A rectangle has a length of (3x-1) and a width of (x - 2). What is equation to determine the area?
(Recall that area comes in the form of length time width)

Answers

Answer:

x-5

Step-by-step explanation:

36 ft
27 ft
What is the length of the hypotenuse?
C
feet

Answers

36^2 + 27^2 = C^2
1296 + 729 = C^2
2025 = C^2
C = 45
45 feet is the length of the hypotenuse
Have a great day!!

evaluate. (5.2 + 3) × (6.4 - 1.4) ​

Answers

Answer: 41

Hope this helps ^W^
I believe it should be 41

Fill in the next number in the list. .
3, 4, 6, 9, 13, 18,

Answers

Answer:

Next is 18+6=24

...

..

..

...

.

Answer:

uh... Are you counting by 2's? If so, it should be 2,4,6,8,10,12,14 and so on.

Step-by-step explanation:

Brenda needs to solve the system of linear equations below for her homework assignment. y = 9x – 70 y = 2x – 32 Which is a reasonable estimate of the solution to this system of linear equations?

A. (8, -25
B. (7, -24)
C. (5, -22)
D. (3, -20)

Answers

Answer:

C (5, -22) is the answer

PLEASE HELP
How do you write the set notation for the graph below

Answers

Answer:

The first one

Step-by-step explanation:

Its just playing with the signs, its not ____ and equal to so the last two arent it (because of the empty circle) and its greater than -1 so its number 1.

Order these fractions from least to greatest 6/8, 3/8, 5/8

Answers

Answer:

3/8, 6/8, 5/8

Step-by-step explanation:

that is the right answer

3(x + 2) = 2x + 14
How many solutions

Answers

Answer:

I solution; x=8

Step-by-step explanation:

You have to solve for x by simplifying both sides of the equation and then isolating the variable

3(x+2)= 2x+14

Distributive Property

3x+6=2x+14

Isolate the variable

3x+6-6=2x+14-6        which is 3x=2x+8

3x-2x=2x-2x+8

x=8

Find the value(s) of the variable(s). Write your answer(s) in simplest radical form.

Answers

Answer:

Step-by-step explanation:

12). By applying Pythagoras theorem in the given right triangle,

      Hypotenuse² = (Leg 1)² + (Leg 2)²

      x² = 7² + 7²

      x² = 2(7)²

      x = [tex]\sqrt{2(7)^{2} }[/tex]

      x = [tex]7\sqrt{2}[/tex]

13). By sine rule,

      sin(60)° = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{\sqrt{3}}{2}=\frac{9\sqrt{3} }{y}[/tex]

      y = [tex]\frac{18\sqrt{3} }{\sqrt{3} }[/tex]

      y = 18

      By cosine rule,

      cos(60)° = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{1}{2}=\frac{x}{y}[/tex]

      x = [tex]\frac{y}{2}[/tex]

      x = [tex]\frac{18}{2}=9[/tex]

14). By applying Pythagoras theorem in the given right triangle,

      12² = x² + x²

      144 = 2x²

      72 = x²

      x = √72

      x = 6√2

WILL MARK YOU BRAINLIEST

Answers

(8)2+(x)2=(10)264+x2=100x2=100-64x2=36x=6BE = 6hope it helps..stay blessed...thank you....

Help ASAP pLeAsEeE I’ll make you as brainlister

Answers

Answer:

Step-by-step explanation:

Side a = 16

Side y = 25.60535

Side x = 30.19328

I think is side a 16!!!!

does 3/7 , 12/21 make a proportion

Answers

Yes it does hope this helps

Answer:

No, it does not.

Step-by-step explanation:

The question, does 3/7 and 12/21 make a proportion, does not. It does not make a proportion, because for 3 to equal 12, you must multiply by four. when you multiply 7 by 4, you get 28. that is not right. if this explanation is too confusing, i added a picture

pls help me answer this :’)

Answers

Answer:

Commutative and multiplicative identity

Step-by-step explanation:

mark brainlyist

Find the product
(4)(-11) =

Answers

Answer:

4 X -11

-44

plz mark as brainliest

Answer:

-44

Step-by-step explanation:

Basically It's like 4x11, but you put a negative sign.

parker was able to pay 56% of his tuition with his scholarship .The remaining $6,057.35 he paid for with a student loan . What was the cost of parkers tuition ?

Answers

Answer:

$13,766.70

Step-by-step explanation:

Since he paid 56% with the scholarship, that means $6,057.35 is 44% of the total tuition

To find the total cost of tuition, divide 6,057.35 by 0.44

6,057.35/0.44

= 13766.70

So, the cost of Parker's tuition was $13766.70

math is hard im not sure for this

Answers

Answer:

c. 39 miles per hour

Step-by-step explanation:

If you look at the graph, each hour has a marking of an interval of 39, starting at (1,39).

(hope this helps-and math gets better)

In a certain Algebra 2 class of 29 students, 17 of them play basketball and 6 of them play baseball. There are 8 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer:

50

Step-by-step explanation:

PLEASE HELP I NEED IT LIKE ASAP!!!

Answers

Answer: oop i forgot

Step-by-step explanation srry

first hole needs 6 square feet, second hole needs 2 square feet.

At which root does the graph of f(x) = (x - 5)3(x + 2)2 touch the x-axis?
-5
-2
2
О
5

Answers

Answer: It should be -2 and 5

Step-by-step explanation:

WHO EVER ANSWERS FIRST WILL GET A BRAINLY!!!!!!PLS BE QUICK

You call a taxi company to find out their rates. The taxi company charges $1.50 for the first mile, and $.90 for each additional mile. How far could you go for $20 if you give the driver a $2 tip? Write your answer, then write a written explanation of how you got your answer. Explain your steps in complete sentences! ​

Answers

Step-by-step explanation:

(2$+1.5&)+0.9$X=20$

3.5$+0.9$X=20$

0.9$x=20$-3.5$

x=16.5$/.9$

x=18.333

so he can travel 18.333miles.

first we need to add the two separated cause of 1.5 Dollar in $2 tip which give us 3.5 dollar that is to be subtracted from the $20 you have. then the money that is left in your pocket is 16.5 dollar s this will be deducted 0.9 for every mile so dividing 16.5 by 0.9 gives 18.333.

The sum of two numbers is 51 and the greater number is twice the smaller number. Find the numbers.
a) set up the variables
Let _______ represent the first number Then _______ will represent the second number.
b) What is the equation that represents the above situation? c) Solve the equation.

Answers

Answer:

34 and 17

Step-by-step explanation:

x+y=51

2y=x

2y+y=51

3y=51

y=17

2(17)=x

x=34

Hello! I will give you fifteen points if you solve this correctly!

Answers

Answer:

mark each line about 1 in. apart

Plzzzzz give me Brainliest!!!!!  

Find C.
Round to the nearest tenth.
с
17 ft
8 ft
B
А
16 ft
C = [ ? ]
Law of Cosines : c2 = a2 + b2 - 2ab cos C
Enter

Answers

Answer:

[tex]C=69.1^{\circ}[/tex]

Step-by-step explanation:

The Law of Cosines is given as:

[tex]c^2=a^2+b^2-2ab\cos C[/tex].

Plugging in given values, we get:

[tex]16^2=8^2+17^2-2\cdot 8\cdot 17\cdot \cos C,\\\cos C=\frac{-97}{-272},\\C=\arccos(\frac{97}{272}),\\C=\fbox{$69.1^{\circ}$}[/tex].

Hi , I have geometric question
What is x angel ?

Answers

Explain how I would know the answer

Find the value of f (-2)

Answers

Answer:

f(-2)=-5

Step-by-step explanation:

i think of the line -5

What are the zeros of the function (x) = x2 – 3x+2?

Answers

Step-by-step explanation:

f(x) = x² - 3x + 2 = (x - 2)(x - 1).

When f(x) = 0, (x - 2)(x - 1) = 0.

=> x = 2 or x = 1.

..please help someone, im begging you. theres two screenshots i took bc its either a, b, c, or d

Answers

Answer:

It's C

Step-by-step explanation:

c!! have a good day and stay safe
Other Questions
Can someone help me out please I got it wrong owing. b. Is 3 a factor of 34? y = -1X + 9Use the equation to predict the number of visits per week to a coffee shop that is 3 blocks away. Plz help I dont know .correct answer only.Will mark brainliest and give many points if correct only Plzzz someone help me with these 2 problems I will give you 33 points Simplifying the following expression:15 + w +( 12) = 15 12 + w Plz help !!!!!!!!!!!!!!!!!! please hakdshfkasdjf;kajsd;kfjas;kdfjaksjdfklasjdfkljhklajsdflkajsdklfajskjd;hfjalsdf;asdkfj;aksfasdfad;s;fasdfddddddddddddddddddddddddddddddddddddddd help me help me help me Find the equation of the line with slope of 4 and y-intercept of -3.A. y = 1/4x - 3B. y = -1/4x 3. C. y = 1/4x + 3D. y = 4x - 3 Plz help Ill mark brainliest Which of the following situations could best be used to show/illustrate the meaning of bypassed?A. Sara needed to talk to her sister, so she rode ahead to catch up with her.B. The trail ahead was muddy, so I chose another path nearby to get home.C. I really wanted to eat pizza, but I thought the sandwich was a better option.D. Zach flipped through the movie list and took 20 minutes just to find a good one. ActivityAfter graduating from college, Susan decides to live with her parents for a year. She decides to live at home so that she could build up her savingsbefore renting a place on her own or with a roommate. She will pay her parents $500 per month to contribute to rent, laundry, cable, and food.She earns $2500 every month after taxes and deductions for social security and insurance. She has a car payment of $300 per month, $150 for carinsurance, $500 for her student loans, and $100 for her cell phone. Her father convinces her to start saving for retirement at $50 per month.Susan is fond of shopping and when she is out with her friends, they usually make a day of it. They usually dine out. She spends about $500 permonth on shopping and another $400 on dining out. When Susan takes sandwiches to work for lunch on those last few days before her nextpaycheck, she wonders where all the money goes and why she doesn't seem to be able to save for her own place.Use any online budgeting tool to record Susan's expenses and find out what can she do to save money for her place. True or false - Protein is chemically different from carbohydrates and fats because of the presence of nitrogen. Need help ASAP:]]]]] Stephanie is baking cookies for a party. The recipe calls for 3 cups of flour,2 cups of milk, and 1 cup of chocolate chips. What percentage ofStephanie's cookie recipe is chocolate chips? * Marissa counted 29 coins in her change purse which contained, d, dimes and, q, quarters. The value of the coins is $5.00. How many dimes and how many quarters are in her change purse? Please help Im so confused ;( You are driving up a mountain. At the base of the mountain you see a sign that states the elevation above sea level is 3,720 feet at this point. You then travel a horizontal distance of 5 miles to the top of the mountain, and see another sign that states the elevation is 4,215 feet above sea level. What was the average slope of the mountain you just climbed in feet/mile?A) 843 ft/miB) 744 ft/miC) 99 ft/miD) 0.0188 ft/mi please help 0.o :) i wiLL GivE YoU BraiNLy