Answer:
34.5
Step-by-step explanation:
20% of x = 23, this implies that:
[tex] \frac{1}{5}x = 23 [/tex]
Multiply both sides by 5
[tex]x = 23 \times 5 = 115[/tex]
Therefore,
30% of x =
[tex] \frac{3}{10} \times 115 = \frac{345}{10} [/tex]
[tex] = 34.5[/tex]
