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
Mariana [72]
3 years ago
15

There are 12 boys and 13 girls in a class. If the teacher randomly chooses a student's name out of a hat, what is the probabilit

y it will be a girl?
Mathematics
2 answers:
Alex787 [66]3 years ago
6 0
50 percent of 25 percent chance

Afina-wow [57]3 years ago
5 0
12:13 is the answer
You might be interested in
What are the slopes of the asymptotes of a hyperbola with equation (y-2)^2/1^2 - (x-4)^2/3^2 = 1?
vladimir1956 [14]

Answer: 1/3 and -1/3

Step-by-step explanation:

8 0
3 years ago
Which hourly interval had the least rate of change?
frutty [35]

Answer:

hour 3 to hour 4

Step-by-step explanation:

that is where the slope is the least steep

7 0
2 years ago
Read 2 more answers
Verilenlerden<br>hangisi birim<br>kesirdir?<br>2/5<br>B<br>5/8<br>2/3<br>D<br>​
o-na [289]

Answer:

2/3 ..................

4 0
3 years ago
In a group of 40 people, 27 can speak English and 25 can speak Spanish. How many can speak
Svetradugi [14.3K]

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Information \: provided \:  with  \: us }}}}}\: \bigstar}

➻ In a group of 40 people, 27 can speak English and 25 can speak Spanish.

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{What \: we \:  have  \: to \: find ? }}}}}\: \bigstar}

➻ The required number of people who can speak both English and Spanish .

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Assumption}}}}}\: \bigstar}

<u>Consider</u> ,

➻ A → Set of people who speak English.

➻ B → Set of people who speak Spanish

➻ A∩B → Set of people who can speak both English and Spanish

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Given}}}}}\: \bigstar}

  • ➻ n (A) = 27

  • ➻ n (B) = 25

  • ➻ n (A∪B) = 40

  • ➻ n(A∩B) = ?

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Now}}}}}\: \bigstar}

➻ n(A∪B) = n(A) + n (B) - n(A∩B)

➻ 40 = 27 + 25 - n (A∩B)

➻ 40 = 52 - n (A∩B)

➻ n (A∩B) = 52 - 40

➻ ∴ n (A∩B) = 12

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Therefore}}}}}\: \bigstar}

∴ Required Number of persons who can speak both English and Spanish are <u>12 .</u>

━━━━━━━━━━━━━━━━━━━━━━

\qquad {\: \:\bigstar \:  {\underline{\overline{\boxed{\bf{Verification}}}}}\: \bigstar}

➻ n(A∪B) = n(A) + n (B) - n(A∩B)

➻ 40 = 27 + 25 - 12

➻ 40 = 52 - 12

➻ 40 = 40

➻ ∴ L.H.S = R.H.S

━━━━━━━━━━━━━━━━━━━━━━

6 0
2 years ago
If a data set has 20 data values, the number of values in the upper quartile is .
Scorpion4ik [409]
The upper quartile is 5.5
4 0
3 years ago
Read 2 more answers
Other questions:
  • Determine if each pair of ratios or rates is equivalent. Explain your reasoning. 288 miles on 12 gallons of fuel; 240 miles 10 g
    13·1 answer
  • Dakota tiled a floor with tiles that look like this:
    6·1 answer
  • The 2011 population of manatees in Florida Was 5,067. The animal is thought to be experiencing annual exponential decay of 1.1%.
    6·1 answer
  • Find the scale factor and similarity statement for both problems. Please help.
    14·1 answer
  • What is the equation of the line with a slope of 3/4 that goes through the point (4,1) in slope-intercept form ?
    12·1 answer
  • What is the value of the expression 9+n/3-6 when n= 12
    11·1 answer
  • ABOVE &amp; BEYOND: What is the slope of the line graphed below?​
    7·1 answer
  • “Which Equation Can Be Used To Solve for x in the following diagram”
    15·2 answers
  • Simplify to a single power of 3:<br><br> 3^6 x 3
    13·1 answer
  • Which one will rotate the regular polygon shown onto itself?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!