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
nekit [7.7K]
3 years ago
9

Sixty percent of the students at a certain school wear neither a ring nor a necklace. Twenty percent wear a ring and 30 percent

wear a necklace. If one of the students is chosen randomly, what is the probability that this student is wearing (a) a ring or a necklace?

Mathematics
1 answer:
Reptile [31]3 years ago
7 0

Answer:

0.4

Step-by-step explanation:

Given

60 % wear neither ring nor a necklace

20 % wear a ring

30 % wear necklace

This question can be Solved by using Venn diagram

If one person is choosen randomly  among the given student the probability that this student is wearing a ring or necklace is

P\left ( wear \ ring\ or \ necklace )+P\left ( neither\ ring\ or\ necklace)=1

P\left ( wear \ ring\ or\ necklace )=1-0.6=0.4

The sum of probabilty is equal to 1 because it completes the set

Therefore the required probabilty is 0.4

You might be interested in
Given the diagram below, find the value of x.
Rufina [12.5K]

Answer:

yes 11000

Step-by-step explanation:

6 0
2 years ago
Help again for more points
daser333 [38]

Answer:

F) 1,325.4 in.

:D:D:D:D

4 0
3 years ago
You have 10 tbsp of onion powder.
evablogger [386]

Answer:

we can make 5 servings of spice rub from 10 table spoons of onion powder

Step-by-step explanation:

Given the data in the question;

2 table spoon of onion powder makes one serving of spice rub.

Total table spoons of onion powder available = 10

So Let x represent the number of servings of spice rub we can make from our 10 table spoons of onion powder ;

2 table spoons = 1 servings

10 table spoons = x servings

we cross multiply;

x servings × 2 table spoons = 10 table spoons × 1 servings

x servings = ( 10 table spoons × 1 servings ) / 2 table spoons

x = 10 / 2

x = 5 servings

Therefore, we can make 5 servings of spice rub from 10 table spoons of onion powder

3 0
3 years ago
Maggie’s brother is 12 years younger that three times her age . The sun of their ages is 44 . How old is Maggie
meriva
I'm not sure if this is right but you can set up an equation and solve to find Maggie's age:

Maggie's brother's age = b
Maggie's age = m

b = 12 - 3m
44 = 12-3m
12-3m = 44
-12 -12
-3m = 32
÷ 3 ÷3
m = 10.67

So this would be Maggie's age

I hope this helped :)
7 0
3 years ago
Math please help ( ASAP vv easy )
maks197457 [2]
A. the answer is the first one
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which input value produces the same output value for the
    12·2 answers
  • 11 kl = _____ l? please slove
    15·2 answers
  • A box contains 10 pins 3 are blue and 7 are green. Two pins are taken out the box without replacement. Work out the probability
    6·1 answer
  • What is the range <br> The range is _______
    14·2 answers
  • What is the simplest ratio of 32 and 48
    10·2 answers
  • -75x + 200 represents a bank account balance after x months. What is the initial amount in the
    12·1 answer
  • The positions of two villages A and B. Village B is 100km away and on a bearing of 083° from village A.
    10·1 answer
  • What is the slope of the line 4x + 7y = - 35?
    12·2 answers
  • What is 41687 rounded to the nearest Highest Place
    8·1 answer
  • What does it mean to represent something? In what other situations have you heard
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!