hassanessam557 hassanessam557

08-09-2020
Mathematics

contestada

if r is directly proportional to x and if s = 2/3 when r equal 4/5 what is the value of r when s equal 4/9
a) 8/15 b) 1/15 c) 2/15 d) 7/15

Respuesta :

wangalores wangalores

08-09-2020

Ans: (a)

r = sx

when r = 4/5, s = 2/3
4/5 = x(2/3)
x = 6/5

when s = 4/9,
r = (4/9)(6/5)
= 8/15

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