marissa4323 marissa4323
  • 15-11-2019
  • Mathematics
contestada

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

Respuesta :

TestingU TestingU
  • 16-11-2019

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

Answer Link

Otras preguntas

if you solve an equation by graphing each side as a separate line, which of the following corresponds to the solution of the equation?
can you ever use a calculator to determine if a number is rational or irrational
During the Hoover administration, several economic warning signs appeared. Can you name them?
The Alternative for the Americas agreement of the early 2000s is primarily aimed at A. inviting foreign investment from Asia. B. improving ties with the Europea
Which would be the least helpful for supporting interpretations about the lives of late nineteenth-century immigrants?
__________________ kills many disease-causing bacteria that may have been ingested. A. Pepsin B. Bile C. Gastrin D. Hydrochloric acid
Which of the following excerpts from F. Scott Fitzgerald's "Winter Dreams" exemplifies Dexter's disillusionment with love? a.He loved her, and he would love her
should eighth be capitalized if use in a sentence
Why did most Irish Americans favor neutrality?
Why did most Irish Americans favor neutrality?