Ahummingbird's heart beats 250 times in 10 seconds. use a proportion to find how many times it's heart beats in 32 seconds

250 times: 10secs

? times: 32 secs

Cross Method: 32*250=10*x

                        8000=10*x

                        x=800

800 times

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: