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
erik [133]
3 years ago
10

Assign a probability to the following event, and give the method used to assign it: What is the probability that a randomly sele

cted day of the week will be a Friday
Mathematics
1 answer:
ycow [4]3 years ago
7 0

Answer:

\frac{1}{7}

Step-by-step explanation:

We know, that probability of an event E, is \textrm{P}(\textrm{E})=\frac{\textrm{Number of favorable outcomes}}{\textrm{Total number of outcomes}}.

Here, there are 7 days in a week.

So, total number of outcomes =7.

And only one day, that is, Friday is selected.

So, number of favorable outcomes =1.

Therefore, probability =\frac{1}{7}.

Hence, the probability that a randomly selected day of the week will be a Friday =\frac{1}{7}.

You might be interested in
Write in expanded form 72.864
Sergeeva-Olga [200]

Answer:

70 + 5 + 8/10 + 6/100 + 4/1000

Or

7*10 + 5*1 + 8*1/10 + 6*1/100 + 4*1/1000

5 0
3 years ago
Brainliest if it its right
Anika [276]

Answer:

A = <u>40</u> mm^{2}

Step-by-step explanation:

The equation for finding the area of a trapezoid is A= \frac{a + b}{2}h.

In this equation, a=4, b=6, h=8.

A = \frac{4 + 6}{2}8.

4+6=10
10/2=5
5x8=40

Hope this helps!

8 0
2 years ago
Read 2 more answers
Step 1: A poll of 1500 college students were asked whether or not they had used the Internet to find a place to live sometime wi
trapecia [35]

Answer:

n = 1500

Step-by-step explanation:

The sample size is the number of students  that were asked

n = 1500

5 0
3 years ago
After a 5% pay raise , Hermione is earning $21,000 per year. What was she earning before the pay raise?
Finger [1]

Answer:

\$20,000

Step-by-step explanation:

Let

x -----> Hermione was earning before the pay raise

we know that

100\%+5\%=105\%=105/100=1.05

so

The linear equation that represent this problem is

1.05x=21,000

Solve for x

Divide by 1.05 both sides

x=21,000/1.05

x=\$20,000

7 0
3 years ago
Kennedy and Olivia go to the movie theater and purchase refreshments for their friends.
Anvisha [2.4K]

Answer:

6x + y = 38.75

x + 2y = 17

price of drink is $5.75

Step-by-step explanation:

Let the price  of popcorn be x

Let the price  of drink be y.

price  of  12 bags of popcorn will be 12x

price  of  2 drinks  will be 2y

it is given that "Kennedy spends a total of $77.50 on 12 bags of popcorn and 2 drinks."

thus

12x + 2y = 77.50

dividing LHS and RHS by 2 we have

12x/2 + 2y/2 = 77.50/2

=> 6x + y = 38.75 _________(1)

__________________________________________________

price  of  3 bags of popcorn will be 3x

price  of  6 drinks  will be 6y

it is given that "Olivia spends a total of $51.00 on 3 bags of popcorn and 6 drinks."

thus

3x + 6y = 51.00

dividing LHS and RHS by 3 we have

3x/3 + 6y/3 = 51/3

=> x + 2y = 17   _____________(2)

__________________________________________________

Thus we have two equation

6x + y = 38.75 _________(1)

x + 2y = 17

=> x = 17 - 2y

putting this value of x in equation 1 we have

6( 17 - 2y) + y = 38.75

=> 102 - 12y + y = 38.75

=> 102 - 11y = 38.75

=> -11y = 38.75 -102

=> -11y = -63.25

=> y = -63.25/-11 = 5.75

as we have x = 17 - 2y

using 5.75 in place of y

x = 17 - 2(5.75 )

=> x = 17 - 11.5

=> x = 5.5

Thus, system of equations are

6x + y = 38.75

x + 2y = 17

price of drink is $5.75

3 0
3 years ago
Other questions:
  • Lee drove 420 miles and used 15 gallons of gasoline. How many miles did Lee’s car travel per gallon of gasoline?
    10·2 answers
  • a cyclist rides his bike at a rate of 10 miles per hour. what is this rate in kilometers per hour? how many kilometers will the
    14·1 answer
  • Simplify the expression 2 × 36 − 24 ÷ 6
    11·2 answers
  • Tan x=3/5 nearest tenth
    6·1 answer
  • 3x^2 − 16x + 2 = 0
    15·1 answer
  • Which equation represents the line that passes through the points (-6,7) and (-3,6)?
    15·2 answers
  • can you please just help me so that i dont fail this one because everything i've been doing i've been failing and it's because i
    12·2 answers
  • Write the equation of the line in Point-Slope Form with a slope of 2/3 and
    10·2 answers
  • What is the measurement of angle 2?
    8·2 answers
  • the relationship between the elapsed time in minutes since the stew was removed from the stove and temperature of the stew measu
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!