Answer:
1.5
Step-by-step explanation:
a : b = 1 : 12/5
Area of a circle = πr²
Where : = π = pi = 22/7
R = radius
Let the radius of circle a = 1
Area of circle A = 1π
Radius of circle A = square root of 12/5 = 1.5
The circumference of a circle = 2nr
n = 3.14
circumference of circle A = 2 x n x 1 = 2n
circumference of circle B = 2 x n x 1.5 = 3n
ratio of circumference = 3n / 2n = 1.5
Each hour she would bike 17.9 miles
71.6 / 4 = 17.9
brainliest is appreciated... :}
1) 14.6
2) 1.36
3) .384
4) 37.2
5) 3.125
6) 4.75
7) 2.5
8) 3.04230769231
67thnhttbny
