Classify the following as rational or irrational: a) -1/5

Answers

Answer 1

Answer:

Answer:irrational

Step-by-step explanation:its a negative fraction

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Another term for mean is the arithmetic mean. Why is this so?

Answers

Answer:

It helps distinguish it from other means, such as the geometric mean and the harmonic mean. When someone asks for the average of a group of numbers, they’re most likely asking for the arithmetic mean. An arithmetic mean is calculated by adding several quantities together and dividing the sum by the number of quantities.

Step-by-step explanation:

I got a 100% for this answer :)

It is preferred in different contexts because it helps distinguish it from other means.

One movie club charges an $100 membership fee and $10 for each movie. Another movie club charges no membership fee and charges $15 per movie. Write and solve an equation to find the number of movies you have to buy for the cost of each club to be the same.

Answers

Answer:

Step-by-step explanation:

y = 15x

y = 10x + 100

15x = 10x + 100

5x = 100

x = 20 movies

One polygon has a side of length 3 feet.A similar polygon has a corresponding side of length 9 feet.the ratio of the perimeter of the smaller polygon to the larger is

Answers

The ratio of the smaller to the larger is 3:9. That can also be written as a fraction, $(3)/(9)$ , which of course can be reduced to $(1)/(3)$ or 1:3. That's your ratio.

What is the quotient of 5/7 and 3/14

Answers

Answer:

10/3

Step-by-step explanation:

Keep, change, flip

Keep the first fraction in the equation, change the division symbol to multiplying, and then multiply the first fraction by the reciprocal (opposite) of the second fraction (14/3)

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I need this rn 3×-7 equivalent expressions A. -21 B. 4 C. -4 D. 21

Answers

Answer: The answer is A. -21

Its simplified and i just multiplied 3 by -7 :)

Answer:

Step-by-step explanation:

because a plus and minus equals a minus.

12 girls and 28 boys volunteer to plants trees at a school. The principal divides the girls and boys into identical groups that have girls and boys in each group. What is the greatest number of groups the principal can make?

Answers

The most groups that can be made is the greatest amount that both 12 and 28 can be divided by, or 4. These four groups will each have three girls and seven boys.

Other Questions

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A coin is tossed 40 times. Heads appeared 18 times. Find the experimental probability of landing on heads.

Plzz I need helpmath word problem

Please help! Correct answer only!In a raffle, one ticket will win a $900 prize, and the remaining tickets will win nothing. There are 500 in the raffle. If you have a ticket, what is the expected payoff?