Answer:
7th
Step-by-step explanation:
Given :
Arc length on first swing = 36 inches
After successive swing, arc length decreases by 95%
Length on 2nd swing = 0.95 * 36 = 34.2
Length on 3rd swing = 0.95 * 34.2 = 32. 49
Length on 4th swing = 0.95 * 32.49 = 30.8085
Length on 5th swing = 0.95 * 30.8085 = 29.268075
Length on 6th swing = 0.95 * 29.268075 = 27.80467125
Length on 7th swing = 0.95 * 27.80467125 = 26.4144376875
26.4144376875 < 27
Hence, length falls below 27 on 7th swing
Let's start by going left to right:
50000/50000 * 600 * 700.
50000/50000 cancels each other out so it's 1.
1 * 600 * 700.
600 * 700 = 420000
1 * 420000 = 420000
On monday William watered: 1/5 of his plants
On tuesday William watered: 1/5 of his plants
1/5+1/5=2/5 He watered 2/5 of his plants.
2/5+x=1
2/5+x=5/5, x=5/5-2/5, x=3/5
William still needs to water 3/5 of his plants.