Sadie has $1 worth of nickels and dimes. She has twice as many nickels as dimes. Write a system of equations that could be used to determine the number of nickels and the
number of dimes that Sadie has.
A:5n + 10d = 1
n = 20
B:5n + 10d = 1
d=2n
C:0.05n +0.10d = 1
n = 20
D:0.05n + 0.10d = 1
d=2n

-232

step-by-step explanation:

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet

i belive the biggest ratio would be 18: correct me if im wrong