Abdil
Abdil Abdil
  • 02-05-2019
  • Mathematics
contestada

If p varies directly as r and p=4,r=2,what the value of r when p=12

Respuesta :

jimrgrant1 jimrgrant1
  • 02-05-2019

Answer:

r = 6

Step-by-step explanation:

Given that p varies directly as r, then the equation relating them is

p = kr ← k is the constant of variation

To find k use the condition p = 4, r = 2

k = [tex]\frac{p}{r}[/tex] = [tex]\frac{4}{2}[/tex] = 2

p = 2r ← equation of variation

When p = 12

12 = 2r ( divide both sides by 2 )

hence r = 6

Answer Link

Otras preguntas

what are the stuctues and functions of cell organelles, and how do theg mantain homeostasis?
Simplify: (–6) • (7) – (6) • (–2)      58     16     –30    –54
Which graph represents the equation y = -1/2x - 3?
-6- -2n=3n -(6+5) help lol sry I actually just need a little push on this question
bill gets $0.05 for each can $0.20 for each glass bottle he returns to the recycling center yesterday he returned 32 cans and 10 bottles how much did bill earn
What is The acquisition of electric charge without contact between charged and/or uncharged substances.
The map projection above was created to use in navigation, but it badly distorts areas and shapes. Which map projection is shown in this image?
Close your eyes and imagine this, millions of jellyfish floating peacefully underwater. Each one a different color and size. There are over 2,000 discovered spe
4(x+0.2)=1.3 which value for x makes the sentence true? A.0.50, B.0.53, C.0.28, D.0.13
how many electrons are found in their outer shell ?