Respuesta :

First, we need to change 1.476 minute to seconds

1.476 minutes = 1.476 x 60= 88.56 seconds

Let the number of times they flap there wings in 1.476 minute be X

69 times = 4 seconds

X = 88.56 seconds

cross-multiply

4X = 69(88.56)

4X= 6110.64

Divide both-side of the equation by 4

X = 1 527.66 ≈ 1 528 times