Respuesta :

musiclover10045

153/9 = x/13

153 x 13 = 1989

1989/9=221

x = 221

choixongdong
y = kx
9 = 153k
k = 9/153
k = 3/51

so if y = 13 then
13 = 3/51 x
x = 13 (51/3)
x = 221

answer
x = 221 when y = 13.

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