Answer:
Charles spend [tex]20\%[/tex] of his money on the hot dog
Step-by-step explanation:
In this problem we have that
$15 represent the 100% o the money
so
using proportion
Find out what percentage 3 dollars represents
[tex]\frac{15}{100}=\frac{3}{x}\\ \\x=100*3/15\\ \\x=20\%[/tex]
