1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alinara [238K]
3 years ago
6

The variables x and y vary directly. Use the values to find the constant of proportionality and write an equation that relates x

and y. y=8; x=2
Mathematics
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

y = 4x

Step-by-step explanation:

If y is directly proportional to x (which is what I assume you are meaning in this question), this means that

y = kx, where k is the constant of proportionality.

To find k, we simply substitute in the given x and y values, and solve for k. i.e we to get:

8 = k x 2.

k = 8/2 = 4.  

so y = 4x

You might be interested in
Is a parallelogram a square. <br><br> JUST SAY YES OR NO, SKIP THE EXPLANATION
allochka39001 [22]

Answer:

no

You said skip the explanation, so ok

6 0
3 years ago
Ivanna purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Ivanna used her card
Wewaii [24]

Answer:

11 Minutes

Step-by-step explanation:

$30 - $28.24 = $1.76

$1.76/ 0.16 Cents /minute =  11 Minutes

7 0
2 years ago
Line MN passes through points M(4, 3) and N(7, 12). If the equation of the line is written in slope-intercept form, y = mx + b,
seropon [69]

Answer:

-9

Step-by-step explanation:

What b represents here is the y intercept.

The first thing we will do here is to find the slope.

Mathematically;

m = (y2-y1)/(x2-x1)

Plugging the values;

m = (12-3)/(7-4) = 9/3 = 3

The equation can thus be written as;

y = 3x + b

To get b, we can use any of the points since they lie on the line

Let’s use point M

Substitute the values of x and y in the equation

3 = 3(4) + b

3 = 12 + b

b = 3-12 = -9

3 0
3 years ago
Read 2 more answers
How many centimeters are there in 1/5 of an inch
Lynna [10]

Answer:

0.508

Step-by-step explanation:

4 0
2 years ago
At a glassworks, 60 pounds of composite glass is required to produce 15 pounds of glass. How many pounds of composite are
aleksandr82 [10.1K]
Ngl I think it’s 20 because 15 is 5x3 but 60 divided by 3=20 lmk if I’m wrong
3 0
3 years ago
Other questions:
  • Write a function for the situation. Is the graph continuous or discrete. A movie store sells DVD for 11$ each what is the cost.
    8·2 answers
  • two angles are supplementary. if one angle has a measure twice the other angle what are the measures of the angles
    6·1 answer
  • Solve -3+12-5(2y-7) The solution y is:
    8·1 answer
  • Please help!!! I very much need help, thank you!
    5·1 answer
  • 2(2x − 5 − 4) = 160 − 17
    13·2 answers
  • Is there more ounces in 1 ton than there are pounds
    8·2 answers
  • Find dy/dx for y=log (tan2x)
    7·1 answer
  • Mother mixed cream and milk in the ratio of 2 parts cream to 3 parts milk. How many cups of each are needed to have 80 cups of m
    6·1 answer
  • Andrew is half his brother's age. Three years ago, the sum of their ages was 24. How old are they each now? Please answer Fast.
    14·1 answer
  • PLEASE HELP!!: 600 raffle tickets were sold for $5 each. There is one $500 first prize and three $200 second prizes. The remaind
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!