Answer:
Step-by-step explanation:
Given
A roll of a pair of dice
Required
The probability of getting different numbers
First, list out the sample space;
We have:
The total is:
The outcomes of the different numbers are:
The total is:
So, the probability of having a different outcome is:
-2/15-(-9/15)=-2/15+9/15=9/15-2/15=7/15
the answer is C
Answer:
98
Step-by-step explanation:
Average is the sum of all data points divided the number of data points.
In this specific situation, the average test score, 91, is equal to the sum of Molly's four individual test scores divided by the number of test Molly had, 4.
(( 86 + 87 + 93 + x) / 4) = 91
86 + 87 + 93 + x = 91/4
86 + 87 + 93 + x = 364
x = 364 - 93 - 87 - 86 = 98
Answer:
n = - 1
Step-by-step explanation:
Given
- 8n + 4(1 + 5n) = - 6n - 14 ← distribute and simplify left side
- 8n + 4 + 20n = - 6n - 14
12n + 4 = - 6n - 14 ( add 6n to both sides )
18n + 4 = - 14 ( subtract 4 from both sides )
18n = - 18 ( divide both sides by 18 )
n = - 1
