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

What was the aftermath of the holocaust?
You observe a nearby galaxy. You find that a spectral line, resulting from an electron transition in hydrogen, is shifted from its normal location in the red pa
0.15 converted into a fraction
Only certain electron transitions are allowed from one energy level to another. In one-electron species, the change in the quantum number l of an allowed transi
How to write a informative essay on Greek mythical character
is 10.0279 greater than or less than 0.100279
What is 78 2/3 as a percentage in simplest form.
A straight wire 0.280 m in length carries a current of 3.40 A. What are the two angles between the direction of the current and the direction of a uniform 0.040
Find the value of f(-8) if:f(x)=12x-29
simplify the following expression 5x^2-14x+3-8x-6x^2