Suppose y varies directly as x, and y =15 when x = 3. Find the constant of variation (k).

Answer:

15/49

Step-by-step explanation:

3*10=30

14*7=98

30/98

15/49

Answer:

yes, that is correct

Step-by-step explanation:

- (20÷39) = - 0.513

- 0.513 * 1.43 = - 0.734 ~ - 0.75

The solution is: A) f(x) = -3x + 7 is the same function as -3x + 7 = y.

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

here, we have,

given that,

the function is:  -3x + 7 = y

now, we have to find the same function as -3x + 7 = y.

now, let, the function is represented by f(x)

so, we have,

y = f(x)

so, we get,

f(x) = y = -3x + 7

we get,

f(x) = -3x + 7

so, f(x) = -3x + 7  is the same function as -3x + 7 = y.

Hence, A) f(x) = -3x + 7 is the same function as -3x + 7 = y.

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Answer:

3

Step-by-step explanation:

Use KCF method

Keep the first number, Change division to multiplication and flip the second number.

4 ÷ [tex]\frac{4}{3} = 4 * \frac{3}{4} = 1 * 3 = 3[/tex]

Answer:

I think the answer is B, that was what i got

Answer:

Only graph X represents a function.

Step-by-step explanation:

Use the vertical line test for testing out if the graph represents a function.  If the line passes through two or more points when drawn through a single x value, then it is not a function.  The only graph that is a function is graph X.

Answer:

10.8

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Answer:

Please check the explanation.

Step-by-step explanation:

If each linear function is given as a set of two ordered pairs, all we need is to find a slope between two lines and put one of the points in the slope- intercept form of the line equation to find the y-intercept 'b' and then writing the equation in the slope-intercept form. This is how we can generate a system of equations.

For example, let suppose a linear function has the following ordered pairs:

Finding the slope between two points

[tex]\left(x_1,\:y_1\right)=\left(1,\:1\right),\:\left(x_2,\:y_2\right)=\left(2,\:3\right)[/tex]

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{3-1}{2-1}[/tex]

[tex]m=2[/tex]

We know that the slope-intercept form of the line equation is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept

Now, substituting the slope m = 2 and the point (1, 1) to determine the y-intercept

[tex]y=mx+b[/tex]

[tex]1 = 2(1)+b[/tex]

[tex]b = 1-2[/tex]

[tex]b = -1[/tex]

Now, substituting the slope m = 2 and the value of y-intercept in the slope-intercept form of the line equation

[tex]y=mx+b[/tex]

[tex]y=2x+(-1)[/tex]

[tex]y=2x-1[/tex]

Thus, the equation of a line with the linear function having the points (1, 1) and (2, 3) is:

This is how a system of equations created when each linear function is given as a set of two ordered pairs.

Answer:

Sample response: Use the two points of a linear function to write an equation in slope-intercept form by first finding the slope of the function, and then using a point and the slope to determine the y-intercept. Write the equations in slope-intercept form.

Answer:

6-7 hours (6.9 hours so almost 7 hours)

Step-by-step explanation:

$100.95 ÷ $14.55 = 6.9 hours ( rounded the real answer is: 6.93814433 )

Hopefully this helps! Sorry if wrong. You are loved and you are beautiful/handsome!

-Bee

Answer:

The answer looks to be 35! See where the line stops in bettween 30 and 40?^^

Hope this helps! Let me know if its correct or not!

Answer:

maybe x+3

Step-by-step explanation:

Answer:

id.k sorry

Step-by-step explanation:

Answer:

y is g x 4

Step-by-step explanation:

3 x c = 4

c v v tusi

Answer:

7 is the answer

Step-by-step explanation:

2x7=14

Answer:

7

Step-by-step explanation:

14/2 is 7. Every packet is 2 plants. So in order to find the amount of packets, you just needed to divide the amount of seeds per packet from the total she wanted

Answer:

a

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

infinetly many solutions

Step-by-step explanation:

Answer:

The percent of increase in the shoreline was 38%.

Step-by-step explanation:

Given that the shoreline increased from 10 miles to 13.8 miles because of the spring runoff, to determine the percentage by which the shoreline increased, the following calculation must be performed:

10 = 100

13.8 = X

((13.8 x 100) / 10) = X

(1,380 / 10) = X

138 = X

Thus, since 138 - 100 is equal to 38, the percentage by which the shoreline increased was 38%.

Answer:

530

Step-by-step explanation:

Answer:

oop its 500

hope this helps you  ヾ(•ω•`)o

Step-by-step explanation:

Answer:

535 + 4.50n = 12n.

Step-by-step explanation:

Answer:

y= 4x + 11   and no.

Step-by-step explanation:

Because you spent the 11 dollars extra and rode the rides meanwhile your friend only went on the rides. If (x) equals the amount of rides and (y) means the total amount. Then your friends equation with be y= 4x. But, you already spent 11 dollars additionally so therefore your equation with be y=4x + 11.

I hope this helped.

Friend  y=4x

You  y=4x + 11

Step-by-step explanation:

Number of workers a candy company has = 279

Total factories = 12

Total workers employed at 2 companies = 279×2 = 558

Answer:522

522x18=  so 522x8=4176    522x1=522 add those up and get 4176+522=4698

Step-by-step explanation:

Answer:

yes that is correct and how and why does he be abusive to you.

Step-by-step explanation:

Answer:

The answer is b.

Step-by-step explanation:

y=kx means that k=y/x, not x/y. so it is 28/3...

Answer:

299

Step-by-step explanation:

Answer:

y=7x-2

Step-by-step explanation:

Answer:

its 1

Step-by-step explanation:

for every time x increases by 1, y also increases by 1

Answer:

48 sq

Step-by-step explanation: