brogg brogg
  • 19-05-2019
  • Mathematics
contestada

the variables x and y vary inversely with a constant variation of 7. Use the variation formula, k=xy, to find why when x=9

Respuesta :

Nuada Nuada
  • 19-05-2019

1.Make y the subject

k = xy

k/x = xy/x

y = k/x

2.Substitute

y = k/x

y = 7/9

y = 0.777......

y = 0.8 (Answer)

To confirm

k = xy

k = 9 × 0.8

k = 7.2

k = 7 (constant)

Hope it helps☺

Answer Link
Pinkfootball24 Pinkfootball24
  • 23-04-2021

Answer:

7/9

Step-by-step explanation:

Answer Link

Otras preguntas

How many ml are in a cubic centimeters?
I studied how societies are able to maintain stability and continue to exist even though each individual has his or her own thoughts and ways of doing things. I
What do amendement 6 and 8 have in common?
i need help with this
How many solutions exist for the given equation 3x+13=3(x+6)+1
What is the simplified form of 2(15-3)x(15-3)divided by 2?
The amount of energy it takes to remove an electron from an atom is
Describe where the jews began, where they spread to, and what role the torah played.
Miguel walks 3/4 mile around the high school track in 1/2 hour. how far can he walk in 2 hours
Kari picked 23 bunches of flowers from her garden. each bunch had the same number of flowers. after she gave 46 flowers away, she had 138 left. how many flowers