<span>Arc length = C*(21/360)
so the answer is D</span>
Answer:
No solution unless you put in the wrong equations
Step-by-step explanation:
We will use the equation:
r t = 3/4 r ( t+12 ) /:r
t = 3/4 t + 9
t - 3/4 t = 9
1/4 t = 9
t = 9 * 4 = 36 minutes ( takes a trip to the market )
36 + 12 = 48 minutes
The ride home takes 48 minutes.
4 out of 5 went to potential members, so 1/5 of the total went to existing members.
(1/5)·215 = 43 . . . . went to existing members
