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
Sergeeva-Olga [200]
3 years ago
8

You are going to roll two dice. Let the variable x = the sum of the numbers rolled. What is the probability that x = 9 ?

Mathematics
2 answers:
natita [175]3 years ago
8 0
Assuming these are two six-sided dice, you'll have 36 total combinations to test out. To get the 36, I just multiplied the 6 sides on both dice (6x6=36). First you have to test out all the possible combinations. Making it easier for you, I'll just list the ones that work. The combinations that work are 3+6, 4+5, 5+4, and 6+3. This means there are 4 combinations that work out of 36. This gives us the fraction 4/36. Now, this needs to be simplified. Both numbers are divisible by four, so we'll divide by four. The new fraction is 1/9, which is your answer. This means that, statistically speaking, if you rolled those two dice nine times, the sum of the numbers would be 9 only once. You have an 11% chance of having two numbers on the dice that have a sum of 9.
Allushta [10]3 years ago
3 0

Answer:

Step-by-step explanation:

We assume a dice that is a perfect cube, so every side have equal oportunity to be rolled. For each roll we have 6 possibilities, so we have in total 6 rolls x 6 rolls: 36 possibilities, the sum of this rolls is showed in the adjunt table:

The sums in red are the only that sums 9, there is only 4 possibilites in all the 36 possibilites that sums 9, so the probability of this is 4 possibilties / 36 possibilities = 1/9

You might be interested in
If 11250 = m(600) + b and 7650 = m(400) + b, how do I find the values of b and m? I forgot how to compare when I have two differ
Lelu [443]

Answer:

b=450 and m=18

Step-by-step explanation:

This exercise is an example of <em>linear system equations</em>. A <em>system of linear equations</em> is a set of (linear) equations that have more than one unknown. The unknowns appear in several of the equations, but not necessarily in all of them. What these equations do is relate the unknowns to each other.

The easy way to solve this problem is by using the<em> reduction method</em>.The <em>reduction method</em> consists of operating between the equations, such as adding or subtracting both equations, so that one of the unknowns disappears. Thus, we obtain an equation with a single unknown.

Ordering the equations as a system equations.

\left \{ {{600m+b=11250} \atop {400m+b=7650}} \right.

Using the reduction method, let's substract the second equation with the first equation, in order to clear m.

600m + b = 11250

<u>-400m -  b = -7650</u>

200m       = 3600    -------->  m = 3600/200 -----> m = 18

We can substitute the value of m in any of the two equations to obtain the unknow b.

Let's substitute the value of m in the second equation.

400(18) + b = 7650

7200 + b = 7650 -----> b = 7650 - 7200 -------> b = 450

We can check this values in both equations.

600m + b = 11250 -----> 600(18) + 450 = 11250

400m + b = 7650 ----->  400(18) + 450 = 7650

Satisfying the result of both equations.

6 0
3 years ago
The flagpole is 20 ft high and casts an 8 foot shadow, the oak tree casts a 12 foot shadow. How tall is the oak tree
Fudgin [204]
Answer: 4.8 ft

To answer this question you need to know how much shadow: actual height ratio. Flagpole is having 8 ft shadow with 20 ft actual height. The ratio should be= 8 ft: 20 ft= 0.4

Then multiply the ratio with the oak tree shadow. The equation would be:
0.4 x 12 ft= 4.8 ft  
7 0
3 years ago
Estimate f 3.85 given that f 4 )= 2 and f '( 4 )= 3
Vinvika [58]
The answer is B hope this helped
5 0
3 years ago
4y − 3x − 2y 11 x − 2 x
Inessa05 [86]
By rearranging it:
-3x-2x-22xy+4y
=-5x-22xy+4y answer
4 0
3 years ago
Which equation matches the statement: "The sum of -4x and 2 is 9"??
neonofarm [45]

Answer:

A

Step-by-step explanation:

sum means addition

the problem says sum of -4x and 2 meaning -4x + 2

the word "is" right before 9 means equals 9

6 0
3 years ago
Other questions:
  • Write the equation of a line in slope-intercept form with the following information:
    5·1 answer
  • I need help finding v
    14·1 answer
  • Please help with math, Please and Thank you :)
    13·2 answers
  • Given △RST ~ △RQP.<br><br><br> What is the value of x?
    11·2 answers
  • You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who ow
    14·1 answer
  • What is x in this equation- 3/2x-7=-11
    14·1 answer
  • Solve for A<br> sinA=0.8829
    11·1 answer
  • Line pass through the sets given points. which choice shows perpendicular lines?
    10·1 answer
  • *WILL GIVE BRAINLIEST FOR BEST ANSWER DONT ANSWER IF YOU DONT KNOW AND NO VIRUS LINKS OR I WILL REPORT YOU!!!*
    5·2 answers
  • Jake drew this sketch of his triangular rock garden. What is the area of his rock garden?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!