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]
3 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]3 years ago
8 0
I love your profile picture 56
erik [133]3 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
On a family vacation Amy's dad drove the car at a constant speed and travel 585 miles in 13 hours at this rate how long would it
Zarrin [17]

Answer:

18 hours

Step-by-step explanation:

we know that

Amy's dad drove the car at a constant speed and travel 585 miles in 13 hours

so

using proportion

Find out how long would it have taken the family to travel 810 miles

Let

x -----> the time in hours to travel 810 miles

\frac{585}{13}\frac{miles}{hours}=\frac{810}{x}\frac{miles}{hours}\\\\x=13(810)/585\\\\x=18\ hours

3 0
4 years ago
Read 2 more answers
Solve the following system of equations using an inverse matrix. You must also indicate the inverse matrix, A^{-1},A
yanalaym [24]

Answer:

x-intercept(s):  

(

−

8

3

,

0

)

y-intercept(s):  

(

0

,

−

4

)

Step-by-step explanation:

6 0
3 years ago
Anyone who understand this for 16 point s plz
Zielflug [23.3K]

This is pretty open-ended.  How about:

\sqrt 2 and \sqrt 3 are similar because they're both irrational, meaning neither is the ratio of two integers.

\sqrt 2 and \sqrt 3 are different because \sqrt{2} < 1.5} and \sqrt{3} > 1.5.


5 0
3 years ago
What is the answer to this question
stich3 [128]

Answer:

A

Step-by-step explanation:

Given the exponential function

f(t) = 228(0.975)^{t} ← where t is time in years

Substitute t = 20 into f(t), that is

f(20) = 228 × (0.975)^{20} = 228 × 0.60268.... ≈ 137 → A

4 0
3 years ago
Which ratio is equivalent to the ratio 33:36
xenn [34]

Answer:

Step-by-step explanation:

33/3 = 11

36/3 =13

11 :13

5 0
4 years ago
Other questions:
  • Plz help.......................
    6·2 answers
  • The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced
    12·2 answers
  • The diagram shows the front wooden wall of a warehouse in the shape of a trapezoid with a rectangular section cut out for the st
    14·1 answer
  • PLEASE HELP ON MY MATH
    8·1 answer
  • Which is the correct classification and decimal expansion of 5/8
    10·2 answers
  • True or False. The Centroid of a triangle is the point where the angle bisectors of the triangle intersect.​
    9·1 answer
  • Find the slope of the line represented in
    8·2 answers
  • CAN SOMEBODY PLS HELP ME SOLVE THIS QUESTION!!!
    8·1 answer
  • У
    11·1 answer
  • What are all the values of x that make the quadratic A<br> equation below true?<br> x² – 16=0
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!