Question

1. ariel collected information about mockingbirds for a science project.

time (seconds)	30	90	150
number of wing beats	420	1,260	2,100

part a
how many times will a mockingbird beat its wings in 2 minutes?
answer box
part b
ariel states that a mockingbird beats its wings approximately 0.07 times per second. is ariel correct? explain.
a yes; she divided the number of seconds by the number of wing beats.
b no; she divided 420 by 90 instead of 30.
c no; she found seconds per a wing beat.
d yes; she divided 420 by 30.

Explanation:

Part A

Step1: Find wing beats per second

First, calculate the number of wing beats per second. Using the first data point: \( \frac{420}{30} = 14 \) wing beats per second.

Step2: Convert 2 minutes to seconds

2 minutes is \( 2\times60 = 120 \) seconds.

Step3: Calculate total wing beats

Multiply wing beats per second by total seconds: \( 14\times120 = 1680 \).

To find wing beats per second, we divide number of wing beats by time in seconds. For the first data point, \( \frac{420}{30}=14 \) (wing beats per second), not 0.07. Ariel likely calculated seconds per wing beat (\( \frac{30}{420}\approx0.07 \)), which is incorrect. Option C states she found seconds per wing beat, so it's correct.

Answer:

1680

Part B