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
Wewaii [24]
3 years ago
7

Which equations represent a proportional relationship? Select all that apply

Mathematics
2 answers:
morpeh [17]3 years ago
6 0

Answer:

A, C, D

Step-by-step explanation:

lions [1.4K]3 years ago
4 0

Answer:

y= x/9

y = 9x

Step-by-step explanation:

A the first one is not linear or proportional

the second is linear but doesn't cross the origin

y= x/9 is proportional

y = 9x is proportional

I just used desmos, plug in the values and it shows the line on the graph. Hope that helps and have a great day!

You might be interested in
what is the equation of the line that is parallel to the line y=-1/3x+4 and passes through the point(6,5)
VladimirAG [237]

Answer:

y= -1/3x+7

Step-by-step explanation:

Lines that are parallel have the same slope.  Therefore the line of the equation that you are finding has the slope = -1/3 and an unknown value we can call b to create the equation y=-1/3x +b.

Using the point which the line must pass (6,5), we can plug x and y into the unknown equation to solve for b, the y-intercept.


5=-1/3(6)+b

5=-2+b

7=b

8 0
3 years ago
A cell phone costs $750 and loses 28% of its value each year. What is the value of the phone after 2 years?
Kamila [148]

Answer:

Initial costs 750 and loses .28 of value each year, so still worth 1-.28=.72 of value at start of next year. 750*(.72)^n is the value after n years since for n=0, new, it is 750*.72^0=750*1=750, and after 1 year it is worth 750*.72^1=750*.72 means it lost 28% value after one year. If you with to express it as an exponential exp(..) you need to convert the .72^n into exp(log(.72)*n)=exp(-.3285*n) so you get

750*exp(-.3285*n) as the value after n years.

6 0
3 years ago
Read 2 more answers
The sum of three consecutive integers is 90. Find the three numbers by letting x
Law Incorporation [45]

Answer:

x = 28

Step-by-step explanation:

let us take three consecutive numbers be (x + 1), (x + 2) and (x + 3)

Now,

The sum of three consecutive integers is 90

i.e.,

(x + 1) + (x + 2) + (x + 3) = 90

x + 1 + x + 2 x + 3 = 90

3x + 6 = 90

3x = 90 - 6

3x = 84

x = 84/3

x = 28

x = 28Thus, The value of x is 28

<h2><em><u>VERIFICATION</u></em><em><u>:</u></em></h2>

(x + 1) + (x + 2) + (x + 3) = 90

(28 + 1) + (28 + 2) + (28 + 3) = 90

28 + 1 + 28 + 2 + 28 + 3 = 90

90 = 90

8 0
4 years ago
Read 2 more answers
Plz help i need some one to check if this is right :(
Firdavs [7]

Answer:

no the one above it

Step-by-step explanation:

because i have had it recently

6 0
3 years ago
The director of sales at the Shonda car company wants to examine the
julsineya [31]

Answer:

Step-by-step explanation:

the answer is the 3rd one hope this helps:)

3 0
3 years ago
Other questions:
  • a motor scooter travels 20 miles an hour in the same time that a bicycle covers 9 miles an hour if the rate of the scooter is 9
    13·1 answer
  • What is the standard form for four million two hundred sixteen thousand nintety
    7·1 answer
  • 16$ es que porcentaje de 90$
    12·1 answer
  • Use a models to prove that 3 ( a + b ) is equivalent to 3a+3b.
    11·1 answer
  • a boy sitting on a platform 7.5m high he observes that the angle of elevation of the top of the opposite building is 40°.the pla
    9·1 answer
  • W/7=0.3<br> Pls help know the answer is 2.1 I need an explanation ty
    9·1 answer
  • Question: A square with sides of length 5 is positioned inside a square with sides of length 7. What is the total area between t
    11·1 answer
  • +
    7·2 answers
  • If f(x)=2(x+2) ²-5, then calculate f(4)
    11·1 answer
  • Please help... I can't fail this.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!