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Mariulka [41]
3 years ago
13

Santos wants to know what percentage of people who get married in his county knew each other in school. Which of the following s

urvey methods will allow Santos to make a valid conclusion about the percentage of couples married in his county who knew each other in school?
Mathematics
1 answer:
Andrews [41]3 years ago
7 0

Answer: Sort a list of couples married in his county into a random order, then ask the first 30 couples on the list.

Step-by-step explanation:

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Answer:

1) Let's suppose that you go in a straight line, in a car that moves at a constant speed of 80km/h.

Then the distance from your house (assuming that you start the drive in your house) can be modeled with a linear equation:

D(t) = 80km/h*t

where t is time in hours.

This will be a linear function.

2) Suppose that you have a population of some animal, that grows by 2% each month, and initially, there are 100 individuals of that animal.

Then the first month, the population is 100.

The second month the population increased by a 2%, then it will be:

100 + 100*0.02 = 100*(1.02)

The third month, the population will be 100*(1.02) + 0.2*100*(1.02) = 100*(1.02)^2.

and so on, this is an exponential relation, where the population as a function of the number of months, can be written as:

P(m) = 100*(1.02)^(m - 1)

3) Suppose that you have $100 saved, and each month you can save another $80, let's find a function that says the amount of money that you have saved as a function of the number of months. S(m)

The month number zero (before you started saving) you had $100 saved.

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S(1) = $100 + $80

Another month after, you have:

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5 0
2 years ago
Shauna saw 30 fish. If the number of fish she saw was 6 more than twice the number of clams, which equation could she use to fin
Gwar [14]

Answer:

2x + 6 = 30

hope this helps

4 0
3 years ago
28 is 70% of what number?
sleet_krkn [62]
Use the equation 28/.70 and you should get your answer
7 0
3 years ago
Read 2 more answers
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Anit [1.1K]
C = 22d is the correct answer because for every day the cost increases by 22 so two days mean the cost is equal to 22 (2)
4 0
3 years ago
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Find the measure of angle T
sukhopar [10]

Answer:

100 degrees

Step-by-step explanation:

The measure of angle T is 100 degrees.

5 0
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