Answer:
let number of people at the fair be x.
As per the statement:
70% of people are under 16 years old
⇒
Remaining number =
Since, one third of the people remaining are teachers
⇒Number of teachers at fair =
Also, it is given that the number of teachers at the fair are 21.
hence,
Multiply both sides by 10 we get;
x = 210
Therefore, total number of people at fair are. 210 people
Answer:
Step-by-step explanation:
Applying the Laplace transform:
With the formulas:
Solving for
Apply the inverse Laplace transform with this formula:
Answer:
14 37/45
Step-by-step explanation:
5 4/5=29/5
2 5/9=23/9
29/5*23/9=667/45=14 37/45
Answer:
Ben must wait more than 4.2 years
Step-by-step explanation:
step 1
we know that
The simple interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute the values
Solve for t
Divide by 1,200 both sides
Subtract 1 both sides
Divide by 0.06 both sides
therefore
Ben must wait more than 4.2 years