I think about 60 cause 80 divided by 16=5x16=80 and 16-4=12=12x5=60.
we know that
using proportion
16 80 oz h u mmin g bi r d s = 12 x oz h u mmin g bi r d s 80 ∗ 12 = 16 ∗ x x = 16 80 ∗ 12 x = 60 h u mmin g bi r d s
therefore
the answer is
60 h u mmin g bi r d s
A 12 oz nectar feeder can feed about 60 hummingbirds a day. This is calculated using proportions based on the 16 oz feeder that feeds 80 hummingbirds. The mathematical process involves cross-multiplication to determine how many birds can be supported by the smaller feeder.
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