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
umka21 [38]
2 years ago
13

There are 60 new houses being built in a neighborhood. Last month 1/3 of them were sold. This month 1/5 of the remaining houses

were sold. How many houses are left to be sold?​
Mathematics
1 answer:
tatuchka [14]2 years ago
8 0

Answer:

4

Step-by-step explanation:

You might be interested in
Taking Test need Help!
8090 [49]
Your answer is A, that $56 + (-$2) + (-$3) 
6 0
3 years ago
Read 2 more answers
Rewrite the expression in the form x
Serga [27]

Answer:

See below (I hope this helps!)

Step-by-step explanation:

When dividing exponential terms of the same base, we can simply subtract the exponents, therefore:

\frac{x^{6} }{x^{8} } = x^{(6-8)} = x^{-2}

5 0
3 years ago
Name the property shown by the statement 3(42) = 3(40) + 3(2)
Hatshy [7]

Answer: i think it’s distributive don’t kill me if it’s wrong

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If Alicia can read 3 pages in 1 minute, how long would it take her to read 33 pages?
Bond [772]

divide total pages by pages per minute

33 / 3 = 11 minutes

7 0
3 years ago
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
3 years ago
Other questions:
  • Solve for X . Be sure to reduce your answer . check your answer
    7·1 answer
  • Why is the periodic table called the "alphabet of the universe”
    14·1 answer
  • In help with my Math homework please :) First and correct gets brain.lyest.
    5·2 answers
  • Find the coefficient of x^5y^8 in (x+y)^13
    10·2 answers
  • The sum of three squared and five squared
    11·1 answer
  • Find the slope and the y-intercept of the graph of the linear equation.
    9·1 answer
  • Mr.santos plants beans and squash in the area shown in the model below which expression is equivalent to the sum of the two area
    14·2 answers
  • Blaine's take-home pay is $2,500 each month, and he has created a monthly budget to become more aware of where his money goes. H
    15·1 answer
  • Estamate the value of y when x = 2.5
    10·1 answer
  • What is the product of the binomials (3x+1) (2x-4)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!