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
bulgar [2K]
3 years ago
6

Y is inversley proportionaly to x. when y=7, x=9

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
8 0

The equation is y = 63/x

And y = 3 when x=21

Step-by-step explanation:

When y varies inversely with x, The inverse proportion is given by:

y ∝1/x

When the proportionality symbol is removed, a constant of proportionality is introduced

y = \frac{k}{x}

Putting y = 7 and x = 9

7 = \frac{k}{9}\\k = 9*7\\k = 63

So,

y = \frac{63}{x}

Putting x =21

y = \frac{63}{21}\\y = 3

Hence,

The equation is y = 63/x

And y = 3 when x=21

Keywords: Proportion, variables

Learn more about proportion at:

  • brainly.com/question/11220787
  • brainly.com/question/11131690

#LearnwithBrainly

You might be interested in
Is there anything bigger than a ton
egoroff_w [7]

Answer:

No

Step-by-step explanation:

Well like how the ounce is the smallest a ton is the biggest.For example, it makes more sense to describe the weight of a human being in pounds rather than tons.

8 0
3 years ago
Please give a step by step solution on how to solve #5. Thanks!
Zina [86]
Rate of burn(scented):1/8inch in 1/4h
=4(1/8)inch in 1h=1/2inch in 1h

Rate of burn(unscented):1/9inch in 1/3h=3(1/9)inch in 1h=1/3inch in 1h

The scented candle burns more in one hour.

1/2inch-1/3inch=1/6inch

The scented candle burns 1/6inch more per hour
7 0
3 years ago
SQUARE ROOT OF 16<br><br>THANKS​
Mila [183]

Answer:

4

Step-by-step explanation:

FAQs on the Square Root of 16

The square root of 16 is 4.

8 0
2 years ago
Read 2 more answers
What is 35 percent of 70
11111nata11111 [884]
35 Percent of 70 is 24.5
We assume, that the number 70 is 100% - because it's the output value of the task. We assume, that x is the value we are looking for. If 70 is 100%, so we can write it down as 70=100%. We know, that x is 35% of the output value, so we can write it down as x=35%. <span>Now we have two simple equations: 1.)70=100% 2.)x=35%</span>where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that: 70/x=100%/35% Now we just have to solve the simple equation, and we will get the solution we are looking for.
3 0
2 years ago
Read 2 more answers
Adam went to McDonald's and bought a Big Mac and 2 small fries. Adam spent
Rudiy27

Answer:

the answer is 4.94 because you subtract 10.93-5.99

3 0
2 years ago
Other questions:
  • Item 2 Write a linear function f with the values f(6)=8 and f(9)=3.
    11·1 answer
  • 1/5x + 4 =1/3x-8 <br> Can you show your work too? That would be great
    8·1 answer
  • Candy buys 20 ounces of nuts. Puts equal number of ounces in each of 3 bags. How many ounces of mixed nuts in each bag
    13·1 answer
  • Solve the equation.<br> 2/3-4x+7/2=-9x+5/6
    10·2 answers
  • Find area and perimeter of shaded area and the perimeter is not 96
    15·1 answer
  • What is the slope of the line y=5?
    12·1 answer
  • For a right triangle ABC, you are told that cos A = x and sin A = y. Which option below gives an expression that is equivalent t
    9·1 answer
  • A cell phone costs $120 dollars. The price is reduced 30% for a sale. How much is the savings?
    5·1 answer
  • 7+3 (2x - 5) = 3x +7
    11·2 answers
  • Write an equation in slope intercept form for the line that passes through (5,-1) (6,-1)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!