kcentolellp2gnts kcentolellp2gnts

12-01-2018
Mathematics

contestada

y and x have a proportional relationship and y =5 when x = 4 what is the value of x when y =8

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skmc1985 skmc1985

12-01-2018

y/x = 5/48/x = 5/45x = 32x = 6.4

Sorry if this doesnt help

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choixongdong choixongdong

12-01-2018

y = kx
k = y / x = 5/4 = 1.25
so
y =8 then
8 = 1.25 x
x = 8/ 1.25 = 6.4

answer
x = 6.4 when y = 8

Answer Link

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