daiffrig13 daiffrig13
  • 03-01-2016
  • Mathematics
contestada

y varies directly as x, and y=7 when x=4, find y when x=12

Respuesta :

Аноним Аноним
  • 03-01-2016
Since y varies with x, the same we do to y, applies to x. 

x = 4  y=7

x= 4*3 = 12
x= 7*3 = 21

Therefore, x = 21

Final answer:  x=21    and   y= 12
Answer Link
Аноним Аноним
  • 03-01-2016
♥ Lets gather the information we know:
[tex]x = 4 y=7[/tex]
♥ Now lets multiply and solve:
if x= 4*3 and 4*3 is 12
if x= 7*3 and 7*3 is  21
♥ And since 7*3=21, our answer is 21
Answer Link

Otras preguntas

The 15th Amendment, which granted African Americans the right to vote, was passed on which date?
IDEAS FOR RECONSTRUCTION, explain why they are good ideas?
This state and river share a name, which comes from an Indian word meaning “Father of Waters.”
What American President was famous for playing golf every Fourth of July?
What was manorial system
This patriotic hymn, also called “America,” shares its tune, ironically, with “God Save the Queen,” the British National Anthem. Name it. a. “My Country, ‘Tis
need help fast what are all the solution to this problem
This song, written and recorded by Woody Guthrie, puts to music a walk along our country’s highways, valleys, deserts, and wheat fields. Name the tune. a. “Am
Please, look at the photo and give the ansver.
y - y₁ = m(x - x₁) Slope-Intercept Form of the Line General Linear Form of the Line Point-Slope Form of the Line Slope Form