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
timama [110]
3 years ago
8

Suppose y varies directly as x. if y = 3 when x = 15, find when y = 5.​

Mathematics
1 answer:
julia-pushkina [17]3 years ago
4 0

Answer:

              X = -9

Step-by-step explanation:

y = k X for some fixed number constant k.

 

-5 = k (15)

 

k = -5/15 = -1/3

 

So y = (-1/3)X

 

When y = 3 ---> 3 = (-1/3)X

                        X = -9

You might be interested in
How many balls in one pound of 00 buckshot?
QveST [7]
12...................

8 0
3 years ago
Find the missing dimension:if the perimeter is 6yards and the length is 6ft .what is the width?in yards
larisa [96]
Since you haven't identified this figure, I'm going to assume that it's a rectangle.

The Perimeter of a rectangle of length L and width W is P = 2L + 2W.

Here you are given the Perimeter and the length, and are to find the width, W.

Solving the above equation for W, we get P - 2L = 2W.
Dividing by 2 (to isolate that W), we get 

P
-- - L = W
 2

Substitute P= 6 yds and L = 6 feet (or 2 yds), find W (in yards).
8 0
2 years ago
Solve y = x - 5 if the domain is 5
Lunna [17]
If the domain is 5, you just put that five where you find an x. So,
y = 5 - 5
y = 0

Domain means those are the numbers that will be set as x's in the equation
6 0
2 years ago
What is the surface area of the triangular prism?
Bas_tet [7]

Answer:

135 ft^2.

Step-by-step explanation:

The total surface area

= 2 * area of the triangular sides + area of the 3 rectangular sides

= 2 * 1/2 * 2.5*6 + 8*6 + 8*6.5 + 8*2.5

= 135 ft^2.

4 0
3 years ago
Please help with all, I’ll mark brainliest as long as you tell me how you got that answer.
Mumz [18]

Answer:

function= 2nd,6th

not a function=1st,3rd,4th,5th

Step-by-step explanation:

because in graphing a function, there should only be one y for the x. 2 or more y's in one x is considered as not a function

7 0
3 years ago
Other questions:
  • Please explain how to do this
    10·2 answers
  • The salaries of the president and the Vice President of a certain country total $562,500 a year. If the president makes $237,400
    7·1 answer
  • What ratio is equivalent to 8 to 2
    13·2 answers
  • Write an equation in slope-intercept form for the line with slope 4 and y-intercept -5.
    6·1 answer
  • The difference of a number m and 18 how would you write a algebraic expression ​
    14·1 answer
  • A. Find the unit price for each option shown below. Found to the nearest cent when necessary.
    9·1 answer
  • Pls help extra points
    13·2 answers
  • I am going to fail again lo
    13·1 answer
  • PLEASE ANSWER QUICKLY! WILL GIVE REWARD!!
    7·2 answers
  • Likeee i need help please man please
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!