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3 years ago

Can somebody answer this plz

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

7 0

Answer:

Choice B) {-21, -7, 7, 21}

Step-by-step explanation:

The multiples of 7 are: 0, 7, 14, 21, 28, 35, ... both the positive and negative versions of each number. Erase the even numbers in that list to end up with 7, 21, 35, ...

Choice A fits the description, but there are items missing, namely -7 and 7. So this answer choice is crossed off the list

Choice B has both odd numbers and multiples of 7 listed. Every number is listed. This is why this is the answer.

Choice C has multiples of 7, but these are even numbers. We can cross it off the list.

Choice D is a similar story to choice C, though it has some odd numbers in this list.

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What is the value for y? Enter your answer in the box. y=

serious [3.7K]

Answer:

$y =112$

Step-by-step explanation:

Given

The attached triangle

Required

Find y

The attached triangle is isosceles; so:

$x - 5=34$

Also, we have:

$y + x - 5 + 34=180$ --- angles in a triangle

Substitute: $x - 5=34$

$y + 34 + 34=180$

Collect like terms

$y =- 34 - 34+180$

$y =112$

5 0

3 years ago

A farmer had twice as many chickens as ducks on his farm. After he sold 166 chickens and ducks, he had half as many chickens as

mamaluj [8]

Answer:

The farmer have at first 202 chickens.

Step-by-step explanation:

Given:

A farmer had twice as many chickens as ducks on his farm. After he sold 166 chickens and ducks, he had half as many chickens as ducks left.

Now, to find the chickens farmer have at first.

Let the chickens be $x.$

And, the ducks be $y.$

As, the farmer had twice as many chickens as ducks on his farm.

So, $x=2y$ ......(1)

As, given the farmer after selling 166 chickens and ducks, he had half as many chickens as ducks left.

According to question:

$x-166=(y-29)\times \frac{1}{2}$

$x-166=\frac{y-29}{2}$

Substituting the value of $x$ from equation (1) we get:

$2y-166=\frac{y-29}{2}$

By cross multiplying we get:

$4y-332=y-29$

Adding both sides 332 we get:

$4y=y+303$

Subtracting both sides by $y$ we get:

$3y=303$

Dividing both sides by 3 we get:

$y=101.$

Now, to get the number of chickens substituting the value of $y$ in equation (1):

$x=2y\\\\x=2\times 101\\\\x=202.$

Therefore, the farmer have at first 202 chickens.

7 0

3 years ago

What is the distance around a triangle that has sides measuring 2/18 feet 3/12 feet and 2/12 feet

Minchanka [31]

The distance around an object is called the perimeter. To get the perimeter, you add up the sides. So, 2/18 + 3/12 + 2/12 = your answer.

4 0

3 years ago

{2x + y = -1} {3x- 5y + -21}

NARA [144]

Answer:

your question is not complete or should I say not correct ☺️

8 0

3 years ago

Read 2 more answers

What is the y- intercept of the line described by the equation below y= 3x- 6

inn [45]

Answer:

-6

Step-by-step explanation:

if you use y = mx + b, b is the y-intercept

3 0

4 years ago

Read 2 more answers