xoevelyynnnn
xoevelyynnnn xoevelyynnnn
  • 25-02-2021
  • Mathematics
contestada

If y varies directly with x and
y = 21 when x = 3, find y if x = 5.
First, find the direct variation equation,
y = [ ? ]x

Respuesta :

quincygrinstead quincygrinstead
  • 25-02-2021

Answer:

y = kx

21 = k*3

Now use that to find x as needed.

Or, since y/x is constant (k), you can find the new x without even finding k.

You want x such that

105/x = 21/3

Step-by-step explanation:

Answer Link

Otras preguntas

Solve;- y = 8 y + y = t t = ?
What is -4m= 1.75 what is m and what would it be if it was 4m= 1.75 instead of negative? Please explain work
$.46 is what fraction of a dollar
diameter is also called a chord
You should spend equal time in a warm-up and a cool down. How long should you spend in each? A)Five to 10 minutes B)Three to four minutes C)One minute
The shapes of most comets' orbits are_______.
Which is most likely to occur when technology advances?
draw quick pictures and write to explain how to break apart addends to find the sum of 324 + 231
Use a property to write an equivalent expression for 5(3x-2)=
What kind of films and radio programs became popular during the Great Depression? A. Realistic and gritty programs that faithfully depicted the realities o