Answer:
Step-by-step explanation:
Set this up as a proportion, with width on the top of the ratio and length on the bottom and fill in according to the info you've been given:
[tex]\frac{w}{l}:\frac{5}{8}=\frac{x}{12}[/tex]
x is the unknown width we are looking for. Cross multiply to get
8x = 60 so
x = 7.5
