36:20 18:10
-------- = -------- = 9:5
2 2
If each garden takes 20 minutes to clean, it will take him (20 x 4) to clean the gardens.
20 x 4 = 100
80 minutes
or 1 hour and 10 minutes.
U=2x+3, x=u/2-3/2
u^2+8u+11=0
u1=(-8+sqrt(64-44))/2=-4+sqrt(5)
u2=-4-sqrt(5)
x1=u1/2-3/2=-7/2+sqrt(5)/2
x2=u2-3/2=-7/2-sqrt(5)/2
Answer:
A = 16010.32
Step-by-step explanation:
Given that,

Put P = 10,000, r = 0.08, k = 2 and n = 12 in the above formula to find A.

So, the value of A is 16010.32. Hence, the correct option is (B).