if a humming bird were to get all of its food from a feeder then a 16 oz nectar feeder could feed about 80 humming birds a day how many humming birds would you expect to be able to feed with a 12 oz feeder?
I think about 60 cause 80 divided by 16=5x16=80 and 16-4=12=12x5=60.
we know that
using proportion
\(\frac{80}{16} \frac{humming\ birds}{oz} =\frac{x}{12} \frac{humming\ birds}{oz}\\ \\ 80*12=16*x\\ \\ x=\frac{80*12}{16} \\ \\ x=60\ humming\ birds\)
therefore
the answer is
\(60\ humming\ birds\)