Where is Tenisha's system?
To find the average of something you add up all the numbers and divide by how many there are.
10+15+20+11+8+12+5+18+29+32=160
160/10=16
Answer: The average flow time was 16 minutes.
20 mins means the hand moves 120 degrees around the clock.
The formula to find the arc length is 2pi×r×a/360
2×pi×15×1/3=30pi×1/3=10pi
so i think the answer would be 10 pi cm
The total area that Phillip will be mowing is 64ft