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3 years ago

If a number is an element of the set of real

Mathematics

1 answer:

kvasek [131]3 years ago

3 0

Answer:

Option (A)

Step-by-step explanation:

A set of real numbers is a combination of both rational and irrational numbers.

But the elements in the sets of rational and irrational numbers will be different.

In short, rational and irrational number sets are the two subsets of real numbers.

Hence, the number is an element of either the set of rational numbers or the set of irrational numbers.

Option (A) is the correct option.

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Nookie1986 [14]

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3 years ago

A middle school took all of its 6th grade students on a field trip to see a play at a theatre that has 5000 seats. The students

Morgarella [4.7K]

Answer:

90%

Step-by-step explanation:

So, in order to get this answer, you must divide the amount of students that filled the theatre, which is 4,500, by the amount of seats at the theatre, which is 5,000. You can eliminate the two zeros at the end of each number, which will leave you with 45/50. 45 divided by 50 equals 0.9. You can then multiply 0.9 by 100, because of the 2 zeros eliminated earlier. This will leave you with 90%.

7 0

3 years ago

The pairs of numbers below represent the price of different

Ymorist [56]

Answer:

Option C: 2 books for $14, 5 books for $35

Step-by-step explanation:

A proportional relationship between two quantities would always have a constant of proportionality. Thus,

Constant of proportionality, k = y/x

In this case,

x = quantity of books

y = price

Let's see which pair will have a constant of proportionality:

Option A: 4 books for $24,8 books for $40

24/4 = 6;

40/8 = 5.

No constant of proportionality.

Option B: 5 books for $25, 6 books for $36

25/5 = 5

36/6 = 6

No constant of proportionality.

Option C: 2 books for $14, 5 books for $35

14/2 = 7

35/5 = 7

Constant of proportionality, k = 7.

This pair represents a proportional relationship.

Option D: 3 books for $15, 7 books for $28

15/3 = 5

28/7 = 4

No constant of proportionality.

4 0

3 years ago

A colony of 50 bacteria double in size every 30 minutes. What will the population be 120 mintues from now?

valkas [14]

Answer:

800 bacteria

Step-by-step explanation:

Over here, we have exponential growth.

So we have 50 bacteria

Every 30 minutes, it doubles in size

In 120 minutes, there are four 30 minutes.

So you do 50 * 2 * 2 * 2 * 2

Do that out and you get 800

Let me know if you have any questions

3 0

3 years ago

Which equation can be used to represent "six added to twice the sum of a number and four is equal to one-half of the difference

leva [86]

Answer:

6 + 2 (x+4) = 1/2 (3-x)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers