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olga_2 [115]
3 years ago
5

[Please help with this question and please explain.

Mathematics
2 answers:
kvasek [131]3 years ago
7 0

Answer:

Step-by-step explanation:

this is a linear equation ( y = mx + b)

m = the rate at which it increases

b = the amount they start with

x = the number of correct answers

so the equation is y = 3x + 2

to find y, you just plug in x

ex:

when x = 3

y = 3(3) + 2

y = 9 + 2

y = 11

to find the x value when you have a y value you plug in the y to solve for x

ex:

when y = 29

29 = 3x + 2

27 = 3x

x = 27/3

x = 9

Mandarinka [93]3 years ago
6 0

Answer:

Ok so you start off right off the bat with 2 points that is why starting at 0 you have 2 points. Then after you get a question correct it goes up 3 points. So the 1 is explaining that after they got one question right they then have 5 points. So for when they get two questions right it will be 8 points because you are adding 5 and 3. Then for when they get 3 questions correct it will be 11. This is because they had 8 points and just got another correct so you add 8 and 3. Then you have to go in order so instead of the 5.8 change it to 4 because that is another question. Then say they get it correct you add 11 and 3 which would be 14. Hope this helps. Sorry if unclear

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You want to determine the average number of text messages that students at your school send in a month you want to collect data
trapecia [35]
I would go with football or hallway. If you choose footbal you would probably get a more random demographic but you might not get 200. If you choose hallways you could get 200 so hallway is probably more likely
4 0
3 years ago
The ratio of dogs to cats in the neighborhood was 2 to 3. If there were 30 dogs in the neighborhood, how many cats were there?
jasenka [17]

Answer:  45 cats

Step-by-step explanation: since you got 30 dogs. 2x15= 30 so to get the number of cats do 3x 15= 45cats

4 0
3 years ago
Find the value of x. Part 1c​
gtnhenbr [62]

Answer:

x=11

Step-by-step explanation:

Please see attached image.

4 0
4 years ago
Read 2 more answers
a flat for sale sign has a perimeter of 58 inches. the length is 5 inches longer than the width. what is the width?
timofeeve [1]

Answer:

25 inches

Step-by-step explanation:

1. Information that is needed to solve the problem;

The formula for the perimeter is:

2(a+b) = P

where "a" is the length and "b" is the width.

2. Solving the problem;

Substitute the given values into the formula;

2( 5 + b ) = 58

Inverse operations;

2 ( 5 + b ) = 58

/2               /2

5 + b = 29

-5        -5

b = 25

3 0
3 years ago
About 2% of the population has a particular genetic mutation. 500 people are randomly selected.
S_A_V [24]

The standard deviation for the number of people with the genetic mutation in such groups is 3.1305.

<h3>Standard Deviation</h3>

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Let X be the number of people with genetic mutation is a group of 500,

The formula of standard deviation is given as

SD=\sqrt{n*p(1-p)} \\SD=\sqrt{500*0.02*0.98} \\SD=3.1305

The standard deviation of the given sample is 3.1305

Learn more on standard deviation here;

brainly.com/question/28290366

#SPJ1

4 0
2 years ago
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