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
guajiro [1.7K]
3 years ago
5

You roll a number cube twice. What is the probability of rolling a 2 first and then rolling an odd number?

Mathematics
2 answers:
Leto [7]3 years ago
6 0
You have a 50% to 75% chance 
Liono4ka [1.6K]3 years ago
6 0

Answer:

The probability is \frac{1}{12}

Step-by-step explanation:

Define the events A and B as the events "rolling a 2" and "rolling an odd number", respectively. Notice that the result of every rolling is independent of the previous results, so the event A\cap B describes the phenomenon we are analazying.

On the other hand, we have that the probability of rolling a 2 is \frac{1}{6} and the probability of rolling an odd number is \frac{1}{2}, thus

P(A\cap B) = P(A)\cdot P(B) = \frac{1}{6}\cdot \frac{1}{2} = \frac{1}{12}.

You might be interested in
A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 95% pure anti
Dimas [21]

Answer:

42 gallons 45% antifreeze

28 gallons 95% antifreeze

Step-by-step explanation:

If x is volume of 45% antifreeze, and y is volume of 95% antifreeze, then the total volume is:

x + y = 70

And the total amount of antifreeze is:

0.45 x + 0.95 y = 0.65 (70)

Solving by substitution:

0.45 x + 0.95 (70 − x) = 0.65 (70)

0.45 x + 66.5 − 0.95 x = 45.5

21 = 0.5 x

x = 42

y = 28

7 0
3 years ago
Please help ASAP<br> Please I’ll mark you as brainlister
jenyasd209 [6]

Answer: 15.

Step-by-step explanation:

You divide the degrees by the side length. You get 15. So 15 is the answer.

4 0
3 years ago
Read 2 more answers
216 divided by 31
Aleksandr-060686 [28]

Answer:

6 r 30

Step-by-step explanation:

Step 1:

Start by setting it up with the divisor 31 on the left side and the dividend 216 on the right side like this:

             

 3 1 ⟌ 2 1 6

Step 2:

The divisor (31) goes into the first digit of the dividend (2), 0 time(s). Therefore, put 0 on top:

       0    

 3 1 ⟌ 2 1 6

Step 3:

Multiply the divisor by the result in the previous step (31 x 0 = 0) and write that answer below the dividend.

       0    

 3 1 ⟌ 2 1 6

      0    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (2 - 0 = 2) and write the answer below.

       0    

 3 1 ⟌ 2 1 6

     - 0    

       2    

Step 5:

Move down the 2nd digit of the dividend (1) like this:

       0    

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

Step 6:

The divisor (31) goes into the bottom number (21), 0 time(s). Therefore, put 0 on top:

       0 0  

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

Step 7:

Multiply the divisor by the result in the previous step (31 x 0 = 0) and write that answer at the bottom:

       0 0  

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

         0  

Step 8:

Subtract the result in the previous step from the number written above it. (21 - 0 = 21) and write the answer at the bottom.

       0 0  

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

     -   0  

       2 1  

Step 9:

Move down the last digit of the dividend (6) like this:

       0 0  

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

     -   0  

       2 1 6

Step 10:

The divisor (31) goes into the bottom number (216), 6 time(s). Therefore put 6 on top:

       0 0 6

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

     -   0  

       2 1 6

Step 11:

Multiply the divisor by the result in the previous step (31 x 6 = 186) and write the answer at the bottom:

       0 0 6

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

     -   0  

       2 1 6

       1 8 6

Step 12:

Subtract the result in the previous step from the number written above it. (216 - 186 = 30) and write the answer at the bottom.

       0 0 6

 3 1 ⟌ 2 1 6

     - 0    

       2 1  

     -   0  

       2 1 6

     - 1 8 6

         3 0

You are done, because there are no more digits to move down from the dividend.

The answer is the top number and the remainder is the bottom number.

Therefore, the answer to 216 divided by 31 calculated using Long Division is:

6

30 Remainder

8 0
3 years ago
2/3 minus 16/32 what’s the answer
antiseptic1488 [7]

Answer:

1/6

Step-by-step explanation:

LCD = 96

2(32) - 16(3)/ 3(32) = 64 - 48/96

= 16/96

Simplify:

16/ 16 = 1

96/16 = 6

2/3 - 16/32 = 1/6

Sorry if my work might seem confusing. If it is, then try searching "fraction calculator." It really helps :)

6 0
3 years ago
Help me please and thank you<br> Can you show the work
faust18 [17]

Answer:

the answer is c

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the expression: (3xy)-1
    7·1 answer
  • What is 4 5/6 as a decimal ? - show work plz:(
    10·2 answers
  • Find the volume please and Katie, why are you deleting my questions?
    13·2 answers
  • Write an equation for the line passing through the points (2,4) and (2,7).
    15·1 answer
  • How do you find area for an irregular polygon
    8·2 answers
  • Help please <br> I need to pass my class
    14·1 answer
  • A rectangular prism has a height of 20 cm, length of 7 cm and width of 5 cm.
    15·1 answer
  • Please help i’ll give brainliest if you help thanks
    5·1 answer
  • 5m+2n-7-2m+15 Simplified expression
    10·1 answer
  • Please help! I’ll also give brainliest! Thank you!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!