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
exis [7]
3 years ago
15

If y varies directly with x when y=1/3 and x = 12, find x if y is 4.

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

Answer:

x = 144

Step-by-step explanation:

y α x

we introduce a constant 'k' when changing from α to =.

i.e y = kx

y = ⅓ when x = 12

Meaning, ⅓ = k * 12

⅓ = 12k

k = ⅓ ÷ 12

k = 1/36

If y = 4, x = ?

using the equation y = kx

4 = (1/36)x

x = 4 ÷ (1/36)

x = 4 * 36

x = 144

You might be interested in
Which statements are true about the graph of the function f(x) = x2 – 8x + 5? Select three options.
coldgirl [10]

Answer:

1,4,5

Step-by-step explanation: it ees what it ees

4 0
3 years ago
Which equation is in slop-intercept form?
frosja888 [35]

Step-by-step explanation:

Only D, y = 3x + 12 is in slope-intercept form.

6 0
2 years ago
Read 2 more answers
Drag and drop an answer to each box to correctly complete the explanation for deriving the formula for the volume of a sphere
denis-greek [22]

The answers that would fill in the blanks are

  • 2r
  • a circle
  • an annulus
  • 1/3πr³
  • 4/3πr³
<h3>What is the Cavalier's principle?</h3>

This principle states that if two solids are of equal altitude then the sections that the planes would make would have to be parallel and also be at the same distances from their bases which are equal such that the volumes of the solids would be equal.

Now we have to fill in the blanks with the solution.

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius r and height<u> 2r</u> minus the volume of two cones, each with a radius and height of r. A cross section of the sphere is a <u>circle</u> base of cylinder, is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is an <u>annulus_ </u>.The volume of the cylinder with radius r and height 2r is 2πr³, and the volume of each cone with radius r and height r is 1/3πr³. So the volume of the cylinder minus the two cones is 4/3πr³. Therefore, the volume of the sphere is by Cavalieri's principle

Read more on Cavalieri's principle here

brainly.com/question/22431955

#SPJ1

5 0
9 months ago
Just 6-8 pls n thx.......
alex41 [277]
6 minus 8 equals -2.
5 0
3 years ago
Helppppppppppppppppppppppppp
shusha [124]

Answer:

The answer is 100

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Which sequence is graphed below?
    14·2 answers
  • Ryan earns $5 for each small dog he walks and $8 for each large dog he walks. Today he walked 8 dogs and made a total of $55. Ho
    5·2 answers
  • The Lopez family and the Russell family each used their sprinklers last summer. The water output rate for the Lopez family's spr
    15·1 answer
  • The cost in dollars y of producing x computer desks is given by y=80x+6000
    12·1 answer
  • What is the range of the function shown on the graph above ?
    10·1 answer
  • What is the distance between (-8,2) and (4,4)
    8·1 answer
  • If point (-3,4) is reflected over the x-axis, what are the coordinates of its image?
    5·2 answers
  • You can also put A. B. C. or D.<br><br>​
    15·1 answer
  • Write an algebraic expression that corresponds to "the opposite of a number "
    11·1 answer
  • HELP PLEASE!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!