adjeimerian adjeimerian
  • 01-05-2018
  • Mathematics
contestada

Q is directly proportional to r. q is 76 when r is 20. work out q when r is 45.

Respuesta :

CastleRook
CastleRook CastleRook
  • 11-05-2018
q α r
q=kr
thus
k=q/r
when r=20, q=76
hence
k=76/20=
q=76/20r
when r=45 the value of q will be:
q=76/20×45
q=171
Answer Link
larrythelamb
larrythelamb larrythelamb
  • 31-03-2020

Answer:

q=171

Step-by-step explanation:

Hello there!

In this explanation k is constant and it means that q is some constant amount bigger than r.

q=kr

76=k×20

76÷20=k  

k= 3.8

q=3.8r

q=3.8×45

q=171

Answer Link

Otras preguntas

Cloud formation depends on?
In your family, _____ has lived on a farm? Which pronoun correctly completes the sentence?
Find the average of the following salaries: $52,500.00, $53,500.00 $55,500.00, $56,500.00
{2x + 7y = 2 {x + y = -1
how can we keep Lincoln's promise to our veterans and their families? PLEASE YOU GOT TO HELP ME I AM DOING AN ESSAY and I don't know what it means
1. Which of the following accurately describes the relationship between photosynthesis and cellular respiration? A. Photosynthesis provides cellular respiration
narrative of the life of frederick douglass reread lines 243-253 what effect might this description have had on douglass readers?
Write a unit rate for 12 stunts and 4 movies
What does a cell use to eliminate a substance that is too large to leave by diffusion?
Three fourths of a number less two is five sixths of another number plus five