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
bixtya [17]
3 years ago
9

Describe proportional relationships

Mathematics
1 answer:
irga5000 [103]3 years ago
4 0

the constant of proportionality

Step-by-step explanation:

proportional relationships are relationships between two variables where there are ratios equivalent. another way to think about them is that in a proportional relationship that one variable is always constant value times the other that constant is known as the constant of proportionality

You might be interested in
How do i work out: <br> (y+3) (y-3)<br> ------- = --------- + 2<br> 4 5
Dima020 [189]
Y=13

(when you have fractions like the one in this problem, you get rid of them by multiplying both sides by the denominator.)
4 0
3 years ago
Avery can run at 10 uph. The bank of a river is represented by the line 4x + 3y = 12, and Avery is at (7, 5). How much time does
Reil [10]
The minimum distance will be along a perpendicular line to the river that passes through the point (7,5)

4x+3y=12

3y=-4x+12

y=-4x/3+12/3

So a line perpendicular to the bank will be:

y=3x/4+b, and we need it to pass through (7,5) so

5=3(7)/4+b

5=21/4+b

20/4-21/4=b

-1/4=b so the perpendicular line is:

y=3x/4-1/4

So now we want to know the point where this perpendicular line meets with the river bank.  When it does y=y so we can say:

(3x-1)/4=(-4x+12)/3  cross multiply

3(3x-1)=4(-4x+12)

9x-3=-16x+48

25x=51

x=51/25

x=2.04

y=(3x-1)/4

y=(3*2.04-1)/4

y=1.28

So now that we know the point on the river that is closest to Avery we can calculate his distance from that point...

d^2=(x2-x1)^2+(y2-y1)^2

d^2=(7-2.04)^2+(5-1.28)^2

d^2=38.44

d=√38.44

d=6.2 units

Since he can run at 10 uph...

t=d/v

t=6.2/10

t=0.62 hours  (37 min 12 sec)

So it will take him 0.62 hours or 37 minutes and 12 seconds for him to reach the river.




8 0
3 years ago
Please find the missing angle
Sergeu [11.5K]
360 degrees in a circle

360 degrees minus 90 degrees (the right angle of the square) = 270 degrees

270 degrees divided by 2 = 135 degrees

f = 135 degrees
8 0
3 years ago
A one-celled, aquatic organism called a dinoflagellate is 1000 micrometers long. A microscope magnifies the dinoflagellate 100 t
Dimas [21]
Is it 100 because it just is done ya and 1000
8 0
2 years ago
Marla draws a diagonal in a rhombus to form two triangles. What term can she use to classify each triangle? Explain.
Anuta_ua [19.1K]

Answer: It's C because It was correct on my test.

If I wrong i'm really sorry

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Which are solutions of the equation (x + 5)(x – 3) = 0? Check all that apply.<br><br> x = –15
    11·2 answers
  • Solve the formula 12x+2y=10 for y
    11·2 answers
  • Write the equation is logarithmic form 33 = 27
    5·1 answer
  • Choose the point-slope form of the equation below that represents the line that passes through the point (6, -3) and has a slope
    15·1 answer
  • If a = -9 and b = -4, what is the value of a + b ?<br><br> -5<br> 5<br> -13<br> 13
    13·1 answer
  • What equation passes through (0,5) and (-4,-1)
    9·1 answer
  • 9 kilometers= millimeters​
    14·2 answers
  • 3-4(12 divided by 6)
    10·2 answers
  • 6. 1,000 people were given a survey about their favorite pizza place in NYC. 200 said Lombardi's and the rest said Patsy's. a. W
    14·1 answer
  • B
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!