Find the sum of the angles of a 12 sided polygon
1 answer:
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Answer:
Discrete. See explanation below
Step-by-step explanation:
We need to remember some previous concepts:
We have two types of numerical data: Discrete and Continuous
When we say Discrete data we are refering to data that is countable or can be expressed with integers in a domain.
In the other case when we talk about continuous data we are refering to data that is continuous in a specified domain, it can contain decimals or rational numbers in the Real numbers for example.
For this special case we know that they select a sample size of n=1020 and the sample proportion of people in the United States who wash their hands after riding public transportation was 0.44 or 44% in percentage.
But the number of subjects on this survey needs to be Discrete, since the possible values are 0,1,2,3,4,.....,n and never we have decimals or continuous data in order to express this.
Answer:
It will take Rosa 5 and a half (5.5) weeks to have the same amount of money in both accounts.
Step-by-step explanation:
For this problem, we will have to set two expressions equal to each other. The first expression will represent Rosa's saving account, which already has $117 in it. Every week (), she adds $21 to her savings account:
The second expression will represent Rosa's checking account. Rosa's checking account already has $95 in it. Every week (), she adds $25 to her checking account:
Now that we have our two expressions, set them equal to each other. This is our equation that will be used to find the number of weeks () it takes until Rosha has the same amount of money in both accounts:
Subtract from both sides of the equation:
Subtract from both sides of the equation:
Divide both sides of the equation by the coefficient of , which is
:
So it will take five and a half weeks for her accounts to have the same amount of money.
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Check your work by substituting into the initial equation:
Since the accounts have the same amount, the answer is correct!