Answer:
The length of DE is 5 because they are similar triangle .
Circumference of circle = 11.27π ft
so,
C = 2πr
or, 11.27π = 2πr
or, 11.27π/2π = r
so, r = 5.635 ft
now,
diameter = 2r
= 2 x 5.635
= 11.27 ft
1/4x+4/4x = -6/2x+1/2x
5/4x = -5/2x
x=0
3 cans = $1.50
1.50
------- = 1 can
3 cans
1.50
------- = .50
3
1 can = $.50