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
Ksenya-84 [330]
3 years ago
11

Y is inversely proportional to x . When y = 3 , x = 20 Work out x when y = 12

Mathematics
1 answer:
Talja [164]3 years ago
5 0

Answer:

x = 5 when y = 12

Step-by-step explanation:

If y is inversely proportional to x, we can say that x1 : x2 = y2 : y1

The order of y2 and y1 respectively are interchanged as y is inversely proportional to x

Now let us simply substitute our known values, and solve for x2;

x1 : x2 = y2 : y1

20 : x2 = 12 : 3

20/x2 = 12/3

12(x2) = 3(20)

12(x2) = 60

x2 = 60/12 = 5

You might be interested in
Solve 2(x + 1) = 2x + 2.
Tom [10]

2(x + 1) = 2x + 2\\\\
2x+2=2x+2\\\\
x\in\mathbb{R}

3 0
3 years ago
Based on the graph, which inequality is correct for a number that is to the right of -3?
Firdavs [7]

Answer:

4 > −3

Step-by-step explanation:

To find a number to the right of -3, it must be bigger than -3

The open part of the inequality faces the bigger number.

4 is bigger than -3

4>-3



3 0
3 years ago
Help with #4!!! I’ve tried to figure it out but I can’t.
Virty [35]

Answer:

a

Step-by-step explanation:

all you do is divied the top then you take from

3 0
3 years ago
Read 2 more answers
Select the correct answer.
padilas [110]

Correct answer: A

This represents single value, as we are given an estimate of a "certain amount" of the population. We can conclude that it helps determine / randomly selecting people from a survey.

Thanks for using Brainly!

5 0
3 years ago
Max and his friend zeke are comparing their ages. they figure out that if they double maxs age from 3 years ago and add it to ze
chubhunter [2.5K]
The first step of solving this problem is to find your x, which is the unknown number. The unknown number is the age of Max. Once you find the x you can write out your equation.

The equation for this problem is:

2x+8=26

the first step is to subtract 8 from both sides so that all you have on the left side is 2x and your equation will look like ths:

2x=18

after subtracting the 8; divide everything by the coefficient of x which is 2, your result is:

x=9

Max is 9 years old.
7 0
3 years ago
Read 2 more answers
Other questions:
  • If tan x° = 3 divided by y and cos x° = y divided by z ,what is the value of sin x°?
    14·1 answer
  • Jordan places two boards end to end to make one shelf. The first board is 47-100 meter long.The second board is 5-10 meter long.
    11·2 answers
  • What is 2/9 in simplest form.
    9·2 answers
  • Determine if this relationship forms a direct variation. Verify your answer.
    10·2 answers
  • Given that the circumference is 15.7 meters, find
    14·1 answer
  • Simplify the expression 56-2(4+x)
    12·1 answer
  • I just need the answer
    14·2 answers
  • Which expression is equivalent to 60 - 3y - 9?
    13·2 answers
  • James sees a truck at the dealership for $28,000
    11·1 answer
  • Please hurry <br>5/6x-1/3&gt;1 1/3?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!