All categories

4 years ago

-1/3(n+15)=-2, what is n

1 answer:

3 0

-1/3(n+15)=-2
Use distributive property
-1/3n - 5=-2
Add 5 to both sides
-1/3n=3
Divide -1/3 on both sides
Final Answer: n=-9

You might be interested in

MATH PLZ!!!!!!!!!!!!!!!!!!!! 2 more left

Natali [406]

Answer:

r u dpoing khan academy lol same loll

Step-by-step explanation:

wow

4 0

3 years ago

Read 2 more answers

What's 9 divide by 9

charle [14.2K]

Answer: 1

Step-by-step explanation: When you divide a number by itself, the answer is always 1

7 0

3 years ago

Read 2 more answers

What is the product of 5 1/2 and 3 3/4? A 22 3/8 B 21 1/4 C 20 5/8 D 15 3/8

Lelechka [254]

Step-by-step explanation:

I wrote it down with steps

I hope you benefit from me

3 0

2 years ago

Sodas in a can are supposed to contain an average 12 oz. This particular brand has a standard deviation of 0.1 oz, with an avera

hoa [83]

Answer:

The probability is $P(X < 12) = 0.99286$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 12 \ oz$

The standard deviation is $\sigma = 0.1 \ oz$

The sample mean is $\= x = 12.1 \ oz$

The sample size is n = 6 packs

The standard error of the mean is mathematically represented as

$\sigma_{\= x } = \frac{\sigma}{\sqrt{n} }$

substituting values

$\sigma_{\= x } = \frac{0.1}{\sqrt{6} }$

$\sigma_{\= x } = 0.0408$

Given that the can’s contents follow a Normal distribution then then the probability that the mean contents of a six-pack are less than 12 oz is mathematically represented as

$P(X < 12) = P ( \frac{X - \mu }{ \sigma_{\= x }} < \frac{\= x - \mu }{ \sigma_{\= x }} )$

Generally $\frac{X - \mu }{ \sigma_{ \= x }} = Z (The \ standardized \ value \ of \ X )$

$P(X < 12) = P ( Z < \frac{\= x - \mu }{ \sigma_{\= x }} )$

substituting values

$P(X < 12) = P ( Z < \frac{12.2 -12 }{0.0408} )$

$P(X < 12) = P ( Z < 2.45 )$

From the normal distribution table the value of $P ( Z < 2.45 )$ is

$P (Z < 2.45)0.99286$

=> $P(X < 12) = 0.99286$

4 0

3 years ago

Is this statement true or false? * If an odd number is less than 15, then it is prime.

Hatshy [7]

Answer: That is false

Step-by-step explanation: 9 is odd but not prime

8 0

3 years ago