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

Simplify. 10 – 5.3 • (–4 + –6) a. 63 b. 47 c. –43 d. –47
how to write 2000 using exponents
is 0.02468 greater than 0.024
Which of the following can be elusive ideas escape prisoner memories the title of the book
What is the greatest common factor of 17 and 51
10.4% of what number is 13
An internal force that helps create new landforms is a. mechanical weathering. c. volcanism. b. glacial movement. d. wind erosion.
What was one of Kublai Khan’s achievements?
Which part of the Constitution establishes the legislative branch of the government? A. Article I B. Amendment I C. Article II D. The Bill of Rights
DeLissa wants to dress and act like Marisol, who is a very popular and attractive girl at school. What type of peer pressure is DeLissa reacting to?