1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marysya12 [62]
3 years ago
13

There are 20 children in the cast of a class play, and 8 of the children are boys. of the boys, 4 have a speaking part in the pl

ay, and of the girls, 8 do not have a speaking part in the play. if a child from the cast of the play is chosen at random, what is the probability that the child has a speaking part?
Mathematics
1 answer:
likoan [24]3 years ago
6 0
The probability that a child with a speaking part is chosen randomly would be 2:5.
You might be interested in
PLEASE HELP ASAP MARK AS BRAINLIEST
MatroZZZ [7]
Sence it is growing you are ganna want to start at 0 from where it begins as a sapling and then go right because it is adding on to how tall it is
4 0
3 years ago
Need help!!!! asap. ​
frez [133]

Answer:

D

Step-by-step explanation:

Annoying to type out, take my word for it

7 0
3 years ago
Evaluate the expression 2m + n for m = 17 and n = 8.
iragen [17]

Answer - 42

Expression Evaluated - 2 Times 17 Plus 8

We take the M and the N and substitute 17 for M and 8 for N, then we solve the problem.

Best Of Luck,

     - Ari -

4 0
3 years ago
Just number 7 would be fine but if you could also number 8 would help a lot​
BlackZzzverrR [31]

Answer:

7. r = -5

8. x = -1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

r + 2 - 8r = -3 - 8r

<u>Step 2: Solve for </u><em><u>r</u></em>

  1. Combine like terms:                    -7r + 2 = -3 - 8r
  2. Add 8r to both sides:                   r + 2 = -3
  3. Subtract 2 on both sides:            r = -5

<u>Step 3: Check</u>

<em>Plug in r into the original equation to verify it's a solution.</em>

  1. Substitute in <em>r</em>:                    -5 + 2 - 8(-5) = -3 - 8(-5)
  2. Multiply:                              -5 + 2 + 40 = -3 + 40
  3. Add:                                    -3 + 40 = -3 + 40
  4. Add:                                    37 = 37

Here we see that 37 does indeed equal 37.

∴ r = -5 is a solution of the equation.

<u>Step 4: Define equation</u>

-4x = x + 5

<u>Step 5: Solve for </u><em><u>x</u></em>

  1. Subtract <em>x</em> on both sides:                    -5x = 5
  2. Divide -5 on both sides:                      x = -1

<u>Step 6: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    -4(-1) = -1 + 5
  2. Multiply:                               4 = -1 + 5
  3. Add:                                     4 = 4

Here we see that 4 does indeed equal 4.

∴ x = -1 is a solution of the equation.

8 0
3 years ago
Read 2 more answers
Which angles are right?
notka56 [123]

A & C are correct.

Reason - Forms 90°

See pic.

- Toodles!~

3 0
2 years ago
Other questions:
  • <img src="https://tex.z-dn.net/?f=12%20%3D%201.35%20%5Csqrt%7Bx%7D%20" id="TexFormula1" title="12 = 1.35 \sqrt{x} " alt="12 = 1.
    7·1 answer
  • Factor the polynomial 6x^5-18x^3+54x^2, Please show work.
    14·2 answers
  • A coin is rigged so that the probability of tossing a head is 0.61. The coin is tossed until the first time that a head turns up
    11·1 answer
  • 1.95(6.2-3x)-4.81=18.46
    14·1 answer
  • A student examines a picture of an important biological molecule in a textbook and writes four statements about the molecule in
    14·1 answer
  • Matthew biked for 4 days across an island. He started at the shoreline, which is at an elevation of 0 feet. At the end of day 1,
    11·1 answer
  • SELECT TWOOOOOOOOOO ANSEWS NOT THREE NOT ONE I NEED TWO
    11·2 answers
  • Car travels 177 milies in 3 hours at a constant speed. Which unit ratio represents the speed of the car?
    11·1 answer
  • You're given a side length of 7 centimeters. How many equilateral triangles can you construct using this information?
    14·1 answer
  • Type the correct answer in each box. Use numerals instead of words. The domain of this function is {-12, -6, 3, 15}. Complete th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!