Respuesta :

Answer:

Step-by-step explanation:

The circumference formula is

[tex]2\pi r[/tex]

where r is the radius

The circumference of the NAVY Pier Wheel is 439.6

We know the circumference so we solve for r.

[tex]2\pi r=439.6[/tex]

[tex]r=69.6=70[/tex]

So our radius is 70.

The circumference of Navy is 56% of the original wheel. So we can just set up a proportion.

[tex]\frac{56}{100} =\frac{439.6}{y}[/tex] to find the new circumference.

We simplify that and we get y=485

Know we find the radius,

[tex]2\pi r=785[/tex]

r=[tex]\frac{785}{2\pi } =125[/tex]

So our radius is 125.

3. The  first Ferris wheel circumference is 785. We divide 9 by that to find the wheel  movement per minute.

785/9= 87.2 feet per minute