In a class of 12 boys and 8 girls, two students need to be chosen for classroom jobs.
What is the probability that Mary gets selected?

Answers

Answer 1

Answer:

55 percent chance or 11/20 or  0.55

Step-by-step explanation


Related Questions

Find the value of x. Everything is in the photo.

Answers

Answer:

27

Step-by-step explanation:

Note that since VX and XZ are both line segments, <VWX and <XYZ both equal 180 (also known as a straight angle). Also, note that the sum of the angles in a triangle are 180 degrees. Now, let’s start.

Finding angles of the triangle:

<WYX = <XYZ - <WYZ = 180 - 4x

<XWY = <XWV - <VWY = 180 - 6x

Using the sum of angles in a triangle and substituting these values in:

180 = <X + <WYX + <XWY = 90 + (180 - 4x) + (180-6x) = 450 - 10x

270 = 10x

27 = x

We are done! I hope this helps! :)

Which substitution method should be the best used to solve which system of equations

Answers

Answer: 6x+2y=1

Step-by-step explanation:

because it just is

plz help this is very confusing

Answers

Answer:

[tex] x \ge 15 [/tex]

Step-by-step explanation:

An isosceles ∆ has 2 equal sides. The perimeter of a ∆ is the sum of all its sides.

Given that the perimeter of the triangle above is "at least 137 ft", this means the sum of all its sides is equal to or greater than 137 ft.

Thus, using inequality, this can be represented as:

[tex] 2(2x + 7) + 4x + 3 \ge 137 [/tex]

Solve for x

[tex] 4x + 14 + 4x + 3 \ge 137 [/tex]

Add like terms

[tex] 8x + 17 \ge 137 [/tex]

Subtract 17 from both sides

[tex] 8x + 17 - 17 \ge 137 - 17 [/tex]

[tex] 8x \ge 120 [/tex]

Divide both sides by 8

[tex] \frac{8x}{8} \ge \frac{120}{8} [/tex]

[tex] x \ge 15 [/tex]

Divide. Write in simplest form.
3/4 divided by 1/8

Answers

Answer:

when you divide 3/4 by 1/8 you get 6

how many men have a waist measurement of more than 85cm

Answers

Answer:

29

Step-by-step explanation:

The answer is 29 hope this helps you! :)

Evaluate -5-15+4+15−5−15+4+15minus, 5, minus, 15, plus, 4, plus, 15.

Answers

Answer:

-2

Step-by-step explanation:

ur welcome

-1

Step-By step Explanation:

Find the solution to the system of equations.
You can use the interactive graph below to find the solution.
\begin{cases} y=-7x+3 \\\\ y=-x-3 \end{cases}









y=−7x+3
y=−x−3

Answers

Answer:

(1,-4)

Step-by-step explanation:

Given:

y = −7x+3

y = −x−3

Computation:

y = −7x+3......eq1

y = −x−3.......eq2

Eq 1 - 2

-6x + 6 = 0

x = 1

So,

y = −7x+3

y = −7(1)+3

y = -4

So,

(1,-4)

Samantha invested $670 in an account paying an interest rate of 5.5% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $1,740?

Answers

Answer:

  17 years

Step-by-step explanation:

The formula for the value of an account earning compound interest can be used to find the number of years. That formula is ...

  A = P(1 +r/n)^(nt)

where P is the principal invested at annual rate r compounded n times per year for t years.

__

Solving for t, we find ...

  A/P = (1 +r/n)^(nt) . . . . . . divide by P

  log(A/P) = nt·log(1 +r/n) . . . . take logarithms

  t = log(A/P)/(n·log(1 +r/n)) . . . . . divide by the coefficient of t

For the given values, the time required is ...

  t = log(1740/670)/(365·log(1 +0.055/365)) ≈ 17.353

It would take about 17 years for the account value to reach $1740.

_____

Additional comment

The time-value-of-money (TVM) apps of your calculator or spreadsheet can be used to find the time period of interest. Here, setting P/Y = 1 gives N in years.

16 is what percent of 20?

Answers

Answer:

3.2

Step-by-step explanation:

16/20 = 0.8
0.8 * 100 = 80
Solution: 80%

Nick earns 3.5%
commission on every
car he sells. How much
would he earn if he sold
a $14.000 car?

Answers

The amount he would earn is $490.

What does multiplication mean?

Multiplication is the process of determining the product of a number. It is determined by following some mathematical processes. The sign used to represent multiplication is ×.

How much will he earn?

Commission = 3.5% x $14,000

0.035 x $14,000 = $490

To learn more about multiplication, please check: https://brainly.com/question/13814687

Where did the 45% come from. It states 55% in question

Answers

Answer:

is this a question......

Pls help me with this ASAP

Answers

The answer is the first option, 3/1

What is the answer I need help pls

Answers

Answer:

The answers are,

-3, -7

-2, 4

0, 2

2, 8

3, 11

Step-by-step explanation:

You just plug in the domain values into the equation and solve for f(x), so your domain number is your x value and the y value(f(x) value) is the answer

Lourdes recorded in this table the change in her dog's weight, in ounces, each month. Which statement can be suppor by the data in the table? Change in Dog's Weight January February March April May +6 +4 -2 +1 -5

A) Lourdes dog gained weight in more months than it lost weight because there are more positive numbers than ne numbers.

B) Lourdes' dog lost weight in more months that it gained weight because the digit 5 is the greatest digit and it is a ne number.

C) Lourdes dog gained weight every month because it is getting older.

D) Lourdes dog lost weight every month because the change in May is a negative number.​

Answers

Answer:

A). Lourdes dog gained weight in more months than it lost weight because there are more positive numbers then negative numbers

Other Questions
Several objects were dropped from a balcony. Using the data below, determine which statements must be true regarding the rate of force of each falling object. Neglect (ignore) air resistance.ObjectMassDiameterHeight of dropTennis Ball0.06 kg6.6 cm5 mBaseball0.15 kg74 cm5 mBowling Ball5 kg21 cm5 mGolf Ball0.04 kg4.3 cm5 mStatement 1: All balls hit the ground at the same timeStatement 2: All balls hit the ground with different forcesStatement 3: The bowling ball hit the ground first and the tennis and golf ball hit the ground last Statement 4: It is not possible to tell how much force each ball hit the ground with Summary of A Christmas Carol type the answer that you think I should say Factor the following by completing the square w^4-22w^2+9 select the correct subject pronouns and the present forms of ser. Oscar y t ella, es t, eres ustedes, son HELP ME PLEASE, AND QUICK. Simplify 81 to the negative 3 fourths power. (1 point)Question 8 options:1) 272) negative 1 over 273) 274) 1 over 27 How did the Akkadian Empire grow under Sargon?Sargon invented irrigation systems.Sargon invented a cuneiform writing system.Sargon encouraged the construction of roads.Sargon united the Sumerian city-states into an empire. the bet story he thinks that he will win we know this because How much is 2% of 3.50 What would happen if a neutron was added to Lithium (7) Which of the following quotes best represents the theme of gender in the novel?None of the Iraqi men seemed to take notice of Marla, but the women did, and I saw one of them smiling.""We want freedom, we want love, we want a chance to go to heaven when the time comes."we will be able to divert men away from that operation to providing security for your people."You're not allowed to treat Iraqis." Please help me I do not know how What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breakingBRAINLIEST Find the solution to the system of equations.You can use the interactive graph below to find the solution.\begin{cases} y=-7x+3 \\\\ y=-x-3 \end{cases} y=7x+3y=x3 The First Agricultural Revolution is best described as a period during which __________.A.tools made of bone and stone were first widely usedB.humans were nomadic and lived in small communitiesC.humans hunted and gathered for subsistenceD.humans cultivated plants and domesticated animals which model represents 1/3 How does the final line of the poem reveal the theme?AIt illustrates how secrets can lead to disaster.It shows that praise can be used to deceive others.It suggests that unhappiness can lead to evil actions,DIt highlights how music can be both beautiful and dangerous. The Environmental Protection Agency has been the environments watchdog for close to years.fivetwenty-fiveforty-fivesixty Guys please answer these questions!!! I really need them pleasee!! no goggle answer pls