Find the constant of variation k for the direct variation 2x +6y = 0

Answers

Answer 1

Answer: A relationship between two variables in which one is a constant multiple of the other. The constant here is also called the constant of variation. In order to obtain this value, we manipulate the equation by isolating the variables. We do as follows:

2x +6y = 0
y = -x/3

Therefore, the constant of variation is -1/3. Hope this answers the question. Have a nice day.

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Jamal drew the function below. Which of the following explains whether or not his function is linear? 1) The function is linear because it has a constant rate of change 2) The function is not linear because it has an exponent 3) The function is not linear because it has a discontinuity 4) The function is linear because it has a y-intercept

Answers

1) a constant rate of change means a constant slope, which is characteristic of a linear function.

however...

2) linear functions do have the exponent of $x^1$

3) piecewise linear functions are sometimes discontinuous

4) many functions have y-intercepts

Every two out of three kids sang at the talent show. What percent of the kids did not sing at the talent show? (round)

Answers

33.3% do notsing in the talent show.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Total number of kids = 3

Number of kids who sang = 2

The number of kids who do notsing.

= 3 - 2

= 1

The percentage of kids who do not sing.

= 1/3 x 100

= 33.33%

Thus,

33.3% do notsing in the talent show.

Learn more about percentages here:

brainly.com/question/11403063

#SPJ2

66.7 %
convert to decimal the multiply by 100

A fruit salad is made from pineapples, pears, and peaches mixed in the ratio of 2 to 3 to 5, respectively, by weight. What fraction of the mixture by weight is pineapple? Can you explain this so I can understand how it works?

Answers

2/10, is it that because you need to find how much fruit in total to calculate for the fraction, so 2+3+5= 10 so 10 will be you're bottom number. Then you need to look at how many pineapple there are to then make the fraction 2/10 because there are 2 pineapples out of the 10 fruits. Hope that helps!!

In the following diagram, points C, A, and B are collinear. Use complete sentences to describe the sum of and .

Answers

Answer:

The sum is CB.

Step-by-step explanation:

This is because of points C, A, and B are all collinear, which means that they all fall on the same line. Since the points are collinear, the sum of CA and AB is the whole line, which is CB. I really hope this helps :)

The sum of angles CAD and DAB is 180 degrees. This is because they are all on a straight line (because points CAB are colinear) and angles on a straight line add up to 180 degrees.

Solve this problem using estimation.The Cimarron Middle School orchestra sold $8720.00 worth of candy bars in 28 days. About how much did they make each day?

Answers

If they sold $8,720.00 worth of candy bars in just 28 days, that means they have approximately sold $311.43 worth of candy bars each day.

Write this mixed number 6 4/7 as an improper faction in simplest form

Answers

it is 46/7 you could multiply 6x7 and then add 4 = 46/7

46/7. You do 7 times 6 and get 42. 42+4 is 46.
So 46/7 is the answer.
~JZ

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A survey of 1,000 men and women asked, "Do you earn over $50,000 per year?" The table below shows the responses for males and females:Male Female Total Income over $50,000 485 385 870 Income below $50,000 65 65 130 Total 550 450 1,000 Based on these data, are "being male" and "earning over $50,000" independent events? A) Yes, P(being male | the person earns over $50,000) ≠ P(being male) B) Yes, P(being male | the person earns over $50,000) = P(being male) C) No, P(being male | the person earns over $50,000) ≠ P(being male) D) No, P(being male | the person earns over $50,000) = P(being male) Will give a "Brainliest answer" to the first person to respond