ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

شائع Word Problems >

If two dice are rolled, what is the probability of getting a sum of 9?

الحلّ

I f tw o d i ce a re ro ll e d, w ha t i s t h e p ro babi l i t y o f g e tt in g a s u m o f 9 ?

الحلّ

\frac{1}{9}

+1

عشري

0.11111 \dots

خطوات الحلّ

The possible outcomes when two dice are rolled are

6 \cdot 6

Therefore, the number of possible outcomes:

6^{2}

Find the number of favorable outcomes of getting a sum of 9:

4

Probability

= \frac{number of favorable outcomes}{total number of outcomes}

= \frac{4}{6 ^{2}}

\frac{4}{6 ^{2}} = \frac{1}{9}

= \frac{1}{9}

أمثلة شائعة

the product of a number and 6 less than the number is 27. find the number riley is r years old. his father is 28 years older than him and is also twice as old as him. an equation that represents this is 33 times the sum of 88 times a number �x and 77 is equal to 45.45 Isabella opened a savings account 4 years ago. The account earns 6% interest, compounded monthly. If the current balance is 400.00, how much did she deposit initially?The sum of two numbers is 100 . One number is 4 times as large as the other. What are the numbers?