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
Citrus2011 [14]
2 years ago
9

Para reunir dinero para su gira de estudios , los alumnos de un curso deciden vender números de una rifa que se encuentran numer

adas del 1 al 100 ¿Cual es la probabilidad de ganar en la rifa si se compran todos los numeros que sean multiplos de 3 o de 5?
Mathematics
1 answer:
QveST [7]2 years ago
7 0

Respuesta:

0.53

Explicación:

Para calcular la posibilidad del evento A: "ganar la rifa comprando todos los números múltiplos de 3 o 5", debemos usar la siguiente fórmula.

P(A) = casos favorables / casos posibles

Evaluemos primero todos los casos que son múltiplos de 3, entre 1 y 100: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99. En total son 33.

Ahora, evaluemos todos los casos que son múltiplos de 3, entre 1 y 100: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. En total son 20.

El número total de casos favorables es 33 + 20 = 53.

El número de casos posibles es el total de números de 1 a 100, es decir 100.

Luego P(A) = 53/100 = 0.53.

You might be interested in
X - y³ <br> x= -7 and y=3
sergey [27]
The answer is -34 cause if x is -7 and y is 3 then you know you switch em out and do the thing and get the answer.
7 0
3 years ago
An 8 by 19 ft wall has three 4 by 5ft windows. The area of three windows is what percent of the area of the entire wall
sergij07 [2.7K]
Area of the wall = 8 x 19 = 152 ft square
Area of the window = 4 x 5 = 20 ft square
Area of 3 windows = 20 x 3 = 60 ft square
The percent area of 3 windows from area of the wall = 60/152 or approximately .395 or 39.5%
6 0
2 years ago
Write a function for the line with a slope -1/4 that passes through the point (4,5)
Lilit [14]

Answer: The point slope solution is y+4 = -(1/2)(x-4) which is y + 4 = -(.5)x + 2 or y = -(.5)x -2.

Step-by-step explanation:

5 0
2 years ago
Please help! I don’t know how to do it!!
Bezzdna [24]
The answer should be 26 hours
8 0
3 years ago
GEOMETRY Can anyone help for brainly, this is one of five questions, a (rotation, reflection, or translation) of 90° (clockwise,
lara31 [8.8K]

Answer:

See below-

Step-by-step explanation:

It depends on if you are transforming O to P or P to O

O to P would be rotate counterclockwise translate down 4

using the point (-3,2) from P and it's corresponding point from O (6,3)

rotate 90 counterclockwise (x,y)--> (-y,x) From point O - (6,3)--> (-3,6)

so after the rotation that point would be at (-3,6) to get the point to (-3, 2) move it down 4. so it is translated down 4

if you are transforming O to P is would be the opposite

rotate 90 clockwise and translate up 4

4 0
2 years ago
Other questions:
  • A gate is 3 feet tall and casts a shadow 5 feet long .At the same time a nearby building casts a shadow 45 feet long.
    13·1 answer
  • What is (-m)^-3n if m=2 and n=-24
    15·1 answer
  • Use the first and last data points to find the slope intercept equation of a trend line.
    13·1 answer
  • A chef has 6 cups of berries and will use 2/3 cup of berries for each serving of fruit salad.how many sevings can be made.
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=%20%5Cunderline%7B%20%5Ctext%7BQuestion%7D%7D%20%3A%20" id="TexFormula1" title=" \underline{ \
    11·2 answers
  • Which of the following displays cannot be used to compare data from two different sets?
    15·1 answer
  • PLS HELP ASAP GIVE BRAINLIEST
    6·1 answer
  • Please help with this precalc!!! i desperately need help
    12·1 answer
  • Help will mark brainless if ur right ​
    9·1 answer
  • Geometry, Angles questions ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!