So,
135 is 30% of x
135 = 30% of x
135 = 30% * x
135 = 0.3x
[tex]135= \frac{3}{10}x [/tex]
Multiply both sides by the reciprocal.
[tex]135* \frac{10}{3} =x [/tex]
[tex]\frac{135*10}{3} =x [/tex]
[tex]\frac{45*10}{1}\ or\ 450 =x [/tex]
135 is 30% of 450.