Seudónimo Seudónimo
  • 03-03-2016
  • Mathematics
contestada



If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Respuesta :

Alex66 Alex66
  • 03-03-2016
y= k·x
if y= -15 and x= -20
⇒ -15 = k·(-20)
⇒ k = -15/-20 
⇒ k = 3/4

What is the value of x when y=12 ?

x= ?
k= 3/4
y = 12

y = kx
⇒ x = y/k
⇒ x = 12/(3/4)
⇒ x = 12· (4/3)
⇒ x = 16

Answer Link

Otras preguntas

What are the characteristics of a successful group discussion? Select two options. The discussion focuses on only one or two points of view. The discussion focu
What information was van helmont missing?
What is the result when the number 48 is decreased by 15%?
Credit cards/loans do not make you pay interest. True or False
Please I could have some help on this question :)
The triangle shown below has an area of 40 units”. Find the missing side.
An air pollution expert set up a monitoring program to determine the amount of particulate matter (PM PM ) leaving a farmer’s field after crops were harvested a
Which sentence contains an idiomatic expression? A) On the corner of your desk there should be a large, red income tax binder. B) Abby had a problem with the
Plz helppp!!! will give brainiest!!!!
what is equalivent to -4/6