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
fredd [130]
2 years ago
9

The variables x=9 and y=15 vary directly. Write an equation that relates the variables

Mathematics
2 answers:
snow_tiger [21]2 years ago
8 0
I love your profile picture 56
erik [133]2 years ago
7 0

Answer:

x = 0.6y.

Step-by-step explanation:

x = ky  is direct variation where k is some constant;

Now we find k:-

Substituting for x and y:

9 = k*15

k = 9/15 = 0.6

So the equation is

x = 0.6y.

You might be interested in
What are the factors of x2 – 144? And
zavuch27 [327]

(x +12) (x -12) =0

x = 12

x = -12

7 0
3 years ago
Read 2 more answers
The line plot shows the different lengths of nails in your toolbox. If you take all the nails
sukhopar [10]
The nails less than 2 inches long are the ones that are 1/2”, 1”, and 1 1/2”, if I am reading the table correctly.

4 x 1/2” = 2”
2 x 1” = 2”
2 x 1 1/2” = 3”
2 + 2 + 3 = 7 inches

7 0
2 years ago
Helen got a $7 reduction in the price of a pair of jeans that are normally $32. What is the approximate percent decrease in the
Mila [183]
I believe it is 21% decrease sorry if it’s not
6 0
3 years ago
Read 2 more answers
Find the value of x for which the graph of y = 3x^2 - 8x + 7 achieves its minimum y-value.​
gulaghasi [49]

Answer:

<h3>The y value achieves its minimum at x = 4/3</h3>

Step-by-step explanation:

Given the graph of y to be 3x² - 8x + 7, to get the value of x for which the graph function achieves its minimum y value, we need to find its turning point first.

At the turning point, dy/dx = 0

Given y = 3x² - 8x + 7

\frac{dy}{dx} = 6x-8\\ at\ turning\ point\ 6x-8 = 0

6x = 8\\x = \frac{8}{6}\\ x =\frac{4}{3}

The y value achieves its minimum at x = 4/3

7 0
2 years ago
The graph of Y = COS X+ż is the graph of the y = cos(x) shifted in which direction?
rjkz [21]

Answer:

2 units up

Step-by-step explanation:

You're just taking the  entire graph of cos(x) and then adding 2 so it moves everything up.  If you added 2 to x BEFORE taking the cosine

(like y = cos (x+2) ), then you would shift it left 2.  Adding and subtracting from the x moves everything left or right.  Adding or subtracting at the end just moves it up and down.

3 0
3 years ago
Other questions:
  • Click on the picture to look at some equivalent fractions. Look at them closely. Can you see a relationship of any kind between
    15·2 answers
  • Suppose that w and t vary inversely and that t=1/5 when w=4. write a function that models the inverse variation and find t when
    14·1 answer
  • What is the next item in the sequence −10,−3,4,11
    13·2 answers
  • What is green and makes holes
    15·1 answer
  • Solve:- h/88 - 4/8 = 4/8.
    6·2 answers
  • PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 40 POINTS !! DONT SKIP :((.
    8·2 answers
  • Lucy made 3 cakes that each weighed 32 ounces. how many pounds of cake did lucy make
    12·2 answers
  • What fraction is represented by point A on the number line shown?
    6·1 answer
  • So confused pls help&gt;&gt;&gt;&gt; there’s a pic
    11·2 answers
  • the distribution of heights of adult American men is approximately normal with mean 68 in and a standard deviation of 2.5 in wha
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!