Respuesta :

the answer is 75. if 30 is 40, then 20 is 15, 15 times 5 equals to 75.
30=40%
x=100%

[tex]x= \frac{30*100}{40} [/tex]

[tex]x= \frac{3000}{40} [/tex]

[tex]x= \frac{1500}{20} [/tex]

[tex]x= \frac{750}{10} [/tex]

[tex]x=75[/tex]

anwer
30=40%
75=100%