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4 years ago

What is the common difference of 31, -169, -369, -569?

Mathematics

1 answer:

san4es73 [151]4 years ago

4 0

Answer:

31 is a positive number, while -169, -369, and -569 is negative.

Step-by-step explanation:

Negative numbers, are numbers less then 0 and include a negative sign that looks like this "-".

Positive numbers are numbers above 0 and don't include a negative sign.

-169, -369, and -569 is negative because they have a negative symbol and the number is below 0, while 31 is positive because it's above 0 and doesn't include a negative sign.

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The sum of the ages of Noi's and Noy's is 26 years. The different between four times Noi's age and two times Noy's age is 28 yea

nlexa [21]

Answer:

The age of Noi is 13.333 Years and the age of Noy is 12.67 years

Step-by-step explanation:

The given information are;

The sum of the ages of Noi and Noy = 26 years

Four times Noi's age - Two times Noy's age = 28

Let the age of Noi = X and let the age of Noy = Y

We have;

X + Y = 26 years.................(1)

4X - 2Y = 28 years.............(2)

Divide equation (2) by 2 to get;

(4X - 2Y)/2 = (28 years)/2 which gives;

2X - Y = 14 years.................(3)

Add equation (3) to equation (1), to get;

X + Y + 2X - Y = 26 years + 14 years

3X = 40 years

X = 40/3 = 13.333 Years

From equation (1), X + Y = 26 years, therefore;

Y = 26 - X = 26 - 13.33 = 12.67 years

Therefore, the age of Noi = 13.333 Years and the age of Noy = 12.67 years.

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when asked to write to the prime factorization of the number 27, a student wrote 9 x 3. explain the error and write the correct

Simora [160]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Factor the expression completely. 63x – 9

liraira [26]

Answer:

The answer is 9(7x – 1).

Step-by-step explanation:

63x – 9

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9(7x – 1)

Thus, The answer is 9(7x – 1).

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3 years ago

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ElenaW [278]

9514 1404 393

Answer:

yes

Step-by-step explanation:

A horsepower is on the order of 746 watts*, so 2 1/2 times that will be less than 2500. The motor can be used to drive the fan.

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* "horsepower" has several different definitions, depending on the application and the units system being used. All are less than 1000 W, so the above conclusion is valid in any case.

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