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

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

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

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