First you need to set up your equation.
If you read the question it states one equation IS THE SAME AMOUNT of another equation so here it is:
3x+7= 2x+18
You want to find out x in both equations so I’ll help step by step
1. Subtract 2x from both sides
This leaves you with x+7=18
2. Then subtract 7 on both sides
This leaves you with x=11
So x equals 11 for equations.
You can check by plugging in 11 in x. If you get 40 on both sides....
CONGRATS!! You did it
I hope this helped. Have a great day!
The 85th percentile is the cutoff time
such that
In other words, the 85th percentile refers to the time needed to belong to the top 15% of the distribution; more generally, the
percentile is the top
of the distribution.
Anyway, to find this value of
, transform
to a random variable
with the standard normal distribution using
where
is the mean of
and
is the standard deviation of
.
Here
is used to denote the z-score corresponding to the cutoff time
. Referring to a z-score table, you find that this occurs for
. So,
Step-by-step explanation:
120 + 400= 520 i think sorry not to sure
Answer:
1/36 = 0.0278 = 2.78% probability that you guess the summer's top two must see movies if you randomly guess
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question, the order in which the movies are chosen is not important, which means that we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
Desired outcomes:
Top two movies, so only one outcome, which means that
Total outcomes:
Two movies from a set of 1. So
Probability:
1/36 = 0.0278 = 2.78% probability that you guess the summer's top two must see movies if you randomly guess
Answer:
The answer is 1,569
Step-by-step explanation:
idk i just got you the answer lol