Answer:
The ratio of large fries sold to small fries sold is [tex]8[/tex]
Step-by-step explanation:
Let
x------> the number of large fries sold
y-----> the number of small fries sold
we know that
[tex]x+y=81[/tex] ------> equation A
[tex]y=9\ small\ fries\ sold[/tex] -----> equation B
Substitute equation B in equation A
[tex]x+9=81[/tex]
[tex]x=81-9=72\ large\ fries\ sold[/tex]
Find the ratio
[tex]\frac{x}{y}=\frac{72}{9}=8[/tex]
