Answer :
Answer:
She served 12 hamburgers.
Step-by-step explanation:
This question is solved by proportions, using a rule of three.
Each hamburger weighs 2/3 of a pound. She bought 8 pounts. How many hamburgers is this?
2/3 pound - 1 hamburger
8 pounds - x hamburgers
Applying cross multiplication:
[tex]\frac{2x}{3} = 8[/tex]
[tex]x = \frac{8*3}{2}[/tex]
[tex]x = \frac{24}{2}[/tex]
[tex]x = 12[/tex]
She served 12 hamburgers.