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
borishaifa [10]
3 years ago
10

What is 2 1/4 +3 1/4

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0

Answer: 5 2/4

Step-by-step explanation: you do not add the bottom numbers. You add 2+3=5 and then you add 1+1 that is 5 2/4

UNO [17]3 years ago
5 0

Answer:

5 1/2

Step-by-step explanation:

You have a common denominator so just add the fractions together. Then,add you whole numbers.

You might be interested in
Naval intelligence reports that 4 enemy vessels in a fleet of 17 are carrying nuclear weapons. If 9 vessels are randomly targete
icang [17]

Answer:

0.7588 = 75.88% probability that more than 1 vessel transporting nuclear weapons was destroyed

Step-by-step explanation:

The vessels are destroyed without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

Fleet of 17 means that N = 17

4 are carrying nucleas weapons, which means that k = 4

9 are destroyed, which means that n = 9

What is the probability that more than 1 vessel transporting nuclear weapons was destroyed?

This is:

P(X > 1) = 1 - P(X \leq 1)

In which

P(X \leq 1) = P(X = 0) + P(X = 1)

So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,17,9,4) = \frac{C_{4,0}*C_{13,9}}{C_{17,9}} = 0.0294

P(X = 1) = h(1,17,9,4) = \frac{C_{4,1}*C_{13,8}}{C_{17,9}} = 0.2118

Then

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.0294 + 0.2118 = 0.2412

P(X > 1) = 1 - P(X \leq 1) = 1 - 0.2412 = 0.7588

0.7588 = 75.88% probability that more than 1 vessel transporting nuclear weapons was destroyed

8 0
2 years ago
A school theater director is planning a voluntary trip to New York City for students. He sends a poll regarding interest
PilotLPTM [1.2K]

Answer:

Sixty-eight percent is likely an overestimate for the percentage of parents interested in the trip.

Step-by-step explanation:

6 0
2 years ago
(8) In 10 years, Maria will be 39 years old. Let m represent Maria's age today. Which
makvit [3.9K]

Answer:

(3)

Step-by-step explanation:

if Maria is 39 in 10 years and m is her age today then you would have to add 10 to m to get 39

m+10=39 years old

3 0
3 years ago
Read 2 more answers
A child plays a video game 155 times and wins the game 32 times. What is the experimental probability that the child loses the v
chubhunter [2.5K]
1 out of 5 games could be the answer
4 0
3 years ago
There are 10 students in a class: 6 boys and 4 girls.
horsena [70]

Answer:

1/ 6

Step-by-step explanation:

Therefore, the required probability is 1/6.

4 0
3 years ago
Read 2 more answers
Other questions:
  • How many ways are there to choose a committee of 3 people from a group of 9 people?
    11·1 answer
  • Write an exponential function for the set of points
    10·1 answer
  • What is the range of possible sizes for side x? PLEASE HELP
    13·1 answer
  • Leave the answer in simplest form ?
    7·1 answer
  • (7+5) ÷ 6 + 10 to the second power
    9·1 answer
  • What is the mode for the data set?
    5·1 answer
  • X<br> B.<br> A<br> с<br> D<br> which points are coplanar and noncollinear ?
    15·1 answer
  • Please help! I’m bad at fractions
    9·1 answer
  • If y varies directly with x, find the missing value below.<br><br> (2, -34) and (x, 85)
    9·1 answer
  • YOOO HELP PLSSSSSSSSSS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!