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3 years ago

A pair of dice are rolled. What is the probability of rolling 4 or greater?

1 answer:

6 0

Answer: option D: 11/12

Explanation:

1) The sample space is formed by 36 pairs: 6×6 = 36.

2) Roolling 4 or more is the same that not rolling 3 or less

3) Rolling 3 or less are (1,1), (1,2), and (2,1). Those are 3 outcomes out of 36.

4) Therefore, not rolling 3 or less (the same that rolling 4 or more) has 36 - 3 = 33 outcomes out of 36.

5) The probability of 33 out of 36 is 33/36

6) Simplify the fraction 33/36 = 11/12

And that is the answer.

You might be interested in

Can someone help, "Solve for x and y when 3y=12 and x+y = 6"

Lapatulllka [165]

Answer:

x=2

y=4

3 times 4 equals 12 and 2 plus 4 would equal six

7 0

3 years ago

Find the value of x.

agasfer [191]

Answer:

$\boxed {\boxed {\sf A. \ 18}}$

Step-by-step explanation:

The two angles are inside a right angle. The small box signifies a right angle/ 90° angle.

Therefore, the sum of the angle measures must equal 90. We can set up an equation.

$56+(x+16)=90$

Combine the like terms on the right side. The 2 constants: 56 and 16 can be added.

$(56+16)+x=90\\$

$72+x=90$

Since we are solving for x, we must isolate the variable. 72 and x are being added. The inverse of addition is subtraction, so subtract 72 from both sides.

$72-72+x=90-72$

$x=18$

x is equal to 18 and choice A is correct.

6 0

3 years ago

12=15(z−51)<br> What is Z

professor190 [17]

Answer:

51.8

Step-by-step explanation:

Multiply 15 by z and -51 which would equal (15z-765).

Add 765 to 12 and that equals 777

Divide 777 by 15 which would equal 51.8

4 0

3 years ago

What is 19/25 as decimal

Radda [10]

Well first we need to find how we can turn 25 into 100
Well one way would be to multiply by 4
25 x 4 = 100

Since we multiplied the bottom number by 4 we should multiply the top number by 4.

So..
19 x 4 = 76

So our new fraction is..
76
-----
100

Now we can easily turn this into a decimal.
76/100 = 0.76

Answer = 0.76

Good Luck! :)

3 0

2 years ago

Read 2 more answers

A certain book is sold in a paperback version for 4.75 or in a hardcover versoin for 11.50, If a copy of the book is being purch

mote1985 [20]

Answer:

$135

Step-by-step explanation:

Paperback=$4.75

Hardcover=$11.50

Multiply 4.75 and 20=95

Multiply 11.50 and 20=230

Subtract 230 and 95=135

so it would be $135

4 0

3 years ago