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Studies show that a typical giant hummingbird can flap its wings once in 0.08 of a second.
a. While flying for 7.2 seconds, how many times will a typical giant hummingbird flap its wings?
b. A ruby-throated hummingbird can flap its wings 4 times faster than a giant hummingbird. How many times will a ruby-throated hummingbird flap its wings in the same amount of time?

Respuesta :

Manetho

Answer:

a. 90

b. 360

Step-by-step explanation:

The time taken by humming bird to flap its wings= 0.08 sec

by flying 7.2 seconds a typical giant hummingbird flap its wings [tex]\frac{7.2}{0.08}[/tex] times

= 90 times

Since, A ruby-throated hummingbird can flap its wings 4 times faster than a giant hummingbird, it will flap its wings in every 0.02 sec

so in 7.2 seconds it will flap [tex]\frac{7.2}{0.02}[/tex] times = 360 times

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