Seudónimo Seudónimo

07-02-2017
Mathematics

contestada

if y=5 when x=2,find y when x=8

Respuesta :

nallred23 nallred23

07-02-2017

y would equal 20 because if y=5 when x=2 then when x gets multiplied by 4 to become 8 y would be multiplied by 4 also making it become 20

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christinann062 christinann062

07-02-2017

turn it into equal frations y/x = y/x

5/2 = y/8
cross multiply
2y=40
divide by 2 on each side
y=20

your answer is y=20

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