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
ale4655 [162]
2 years ago
6

Explain how you would find 2/3 x 12 mentally. (help lol)

Mathematics
1 answer:
Natali [406]2 years ago
5 0

Answer: 8

You just need to multiply the numerator (top number) by the 12

2x12=24

so now its 24/3

24/3 simplified is 8

You might be interested in
A one-celled, aquatic organism called a dinoflagellate is 1000 micrometers long. A microscope magnifies the dinoflagellate 100 t
Dimas [21]
Is it 100 because it just is done ya and 1000
8 0
2 years ago
Brooks used 2/3 of a can of paint to paint the bird feeder. A full can of paint contains 7/8 of a gallon. How much paint did Bro
Cerrena [4.2K]
When Brooks painted more he used 6/12 of what was left(1/2 of what was left)
6 0
3 years ago
-6x+y=-2<br>x-3y=9 what is the solution set?
Anarel [89]
Mult. the 2nd eqn by 6 and then add this "new" equation to the 1st given eqn:

 -6x + y = -2
  6x -18y = 54
--------------------
        -17y = 52, or y = -52/17.  Subst. this value of y into either equation to find the value of x.
3 0
3 years ago
A car insurance company has determined that 8% of all drivers were involved in a car accident last year. Among the 15 drivers li
svetlana [45]

Answer:

There is an 11.3% probability of getting 3 or more who were involved in a car accident last year.

Step-by-step explanation:

For each driver surveyed, there are only two possible outcomes. Either they were involved in a car accident last year, or they were not. This means that we solve this problem using binomial probability concepts.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}

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

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

And \pi is the probability of X happening.

In this problem

15 drivers are randomly selected, so n = 15.

A success consists in finding a driver that was involved in an accident. A car insurance company has determined that 8% of all drivers were involved in a car accident last year.  This means that \pi = 0.08.

What is the probability of getting 3 or more who were involved in a car accident last year?

This is P(X \geq 3).

Either less than 3 were involved in a car accident, or 3 or more were. Each one has it's probabilities. The sum of these probabilities is decimal 1. So:

P(X < 3) + P(X \geq 3) = 1

P(X \geq 3) = 1 - P(X < 3)

In which

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)

P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}

P(X = 0) = C_{15,0}.(0.08)^{0}.(0.92)^{15} = 0.2863

P(X = 1) = C_{15,1}.(0.08)^{1}.(0.92)^{14} = 0.3734

P(X = 2) = C_{15,2}.(0.08)^{2}.(0.92)^{13} = 0.2273

So

P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.2863 + 0.3734 + 0.2273 = 0.887

Finally

P(X \geq 3) = 1 - P(X < 3) = 1 - 0.887 = 0.113

There is an 11.3% probability of getting 3 or more who were involved in a car accident last year.

5 0
3 years ago
Mia sells t-shirts from a booth at a market. She pays $30 to rent the booth. Each t-shirt costs her $1.50 and she sells them $7.
brilliants [131]
5 t'shirts is the minimum she can sell to reach her goal.
4 0
3 years ago
Other questions:
  • The range of the function given below is the set of all positive real numbers greater than 6. F(x)=6+2^x
    7·1 answer
  • Suppose f(x)=x^2 and g(x)=(3x)^2 which statement best compares the graph of g(x) with the graph of f(x)?
    5·1 answer
  • The scale on a blueprint is 1/2 in: 6 ft. The height of the living room ceiling
    12·1 answer
  • Will mark brainliest, thank, and rate to only chrislaurencelle
    9·1 answer
  • Please help me with #2
    13·1 answer
  • What is 17÷7?<br> Can it be done?
    12·1 answer
  • What is the possible value of k such that √50 and √k can be written as a single term?
    9·1 answer
  • Mr.Smith had $2400 in his account.He withdrew 60% of the money to buy a new TV set.Calculate the percentage that is left in his
    9·2 answers
  • PLEASE PLEASE HELP ME ASAPPP
    15·1 answer
  • Please help me with this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!