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
tankabanditka [31]
3 years ago
8

Lenny rolls two number cubes. What is the probability that the sum of the numbers Lenny rolls is either 4 or 7?

Mathematics
2 answers:
Mashutka [201]3 years ago
7 0

Probability of an event =


(number of ways the event can happen) / (total number of possible outcomes) .


Well, the total number of possible outcomes is easy. It's


(6 possibilities for the first cube) x (6 possibilities for the 2nd cube)


= 36 total possible ways for two cubes to roll.


Now, how many of those possibilities show either 4 or 7 ?


Well, here's how a 4 can come up:


1 . . . 3

2 . . . 2

3 . . . 1


and here's how a 7 can come up:


1 . . . 6

2 . . . 5

3 . . . 4

4 . . . 3

5 . . . 2

6 . . . 1 .


So there are 9 ways all together for Lenny to be successful.


The probability is (9/36) .


That's 1/4 , or 25% .

WITCHER [35]3 years ago
6 0

|\Omega|=6^2=36\\ |A|=\underbrace{3}_{\text{the sum is 4}}+\underbrace{6}_{\text{the sum is 7}}=9\\\\ P(A)=\dfrac{9}{36}=\dfrac{1}{4}=25\%

You might be interested in
What is the solution to the equation 1/4x = 5?
puteri [66]
The solution to your equation is:

Solve:
1/4x = 5

Step 1: Multiply both sides by 4
4 * (1/4x) = (4) * (5)

x = 20


Thus your answer is:

Letter Choice (C), x = 20





Hope that helps!!!



5 0
2 years ago
A compressed air tank carried by scuba divers has a volume of 8.00 L and a pressure of 141 atm at 22.0°C. What is the volume (in
weqwewe [10]

Answer:

Volume of air in the tank =1,044 Liter

Step-by-step explanation:

Given:

Tank volume = 8 Liter

Pressure = 141 atm

Temperature = 22°C = 273° + 20° = 295° K

Find:

Volume of air in the tank = ?

Computation:

\frac{Pressure\times Tank\ volume}{Tempreture} =\frac{Pressure\times Air\ volume}{Tempreture}\\\\\frac{141\times 8}{295} =\frac{1\times Air\ volume}{273.15}\\\\\frac{1,128}{295} =\frac{Air\ volume}{273.15}\\\\Air\ volume=1,044.45

Volume of air in the tank =1,044 Liter

8 0
2 years ago
Is this expression fully simplified? Explain<br> 4x2 + 10 - x - 6x3
tankabanditka [31]

Answer:

-x

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
ASAP PLSSS help me with this math question
rjkz [21]

Answer:

Answer is D

Step-by-step explanation:

just took the test and got it right

Please mark brainlest

8 0
3 years ago
The estimated product of two numbers that are not multiples of 10 is 2800. what is the question?
Nitella [24]
You need to find the 2 numbers that will estimate to the nearest hundred.
here is your answer 13 x 213
4 0
3 years ago
Other questions:
  • Alejandra heard that as a general rule, she should spend no more than one week's pay on rent. If Alejandra's pay is $34,000 per
    11·2 answers
  • What is the area of this regular polygon a 16.8 b 23.4 c 46.8 d 49.2
    12·1 answer
  • In the first four months of the year the Gerardos Electric bill were $115.46, $113.38, And $91.25. What was the Gerardos average
    12·2 answers
  • Which of the following statements is not true?
    8·1 answer
  • The humpback whales traveled 2240 miles in 28 days.
    9·1 answer
  • Use the information given to enter an equation in standard form.Slope is 6, and the point (3, 8) is on the line.
    13·1 answer
  • What information do you need to write a sine or cosine equation?
    13·1 answer
  • A<br> B<br> C<br> OR<br> D<br> pls pls pls
    8·2 answers
  • The population of a city increases by 5% every year. If it’s population today is 300,000 what will it’s population be in 2 years
    6·1 answer
  • Help me with this problem
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!