It will take 3 men 20 days to complete the job.
Answer:
The square root of 45
Step-by-step explanation:
9^2-6^2=c^2
81-36=c^2
45=c^2
c=sqrt(45)
Answer:
31 years to triple the investment
Step-by-step explanation:
Initial investment = 300
Triple amount that is final amount = 300*3= 900
rate of interest = 3.5 % = 0.035
we need to find out number of years (t)
for compounded continuously we use formula

A is the final amount
P is the initial amount
r is the rate of interest
t is the number of years

Divide both sides by 300

take 'ln' on both sides

ln(3) = 0.035t ln(e)
ln(e)= 1

t= 31.3889
Round to nearest whole number
t= 31 years
Answer:
D = 4.2
Step-by-step explanation:
-5.5 ( d - 2 ) = - 12.1
-5.5d + 11 = - 12.1
11 + 12.1 = 5.5d
23.1 = 5.5d
d = 23.1 ÷ 5.5
d = 4.2