Answer:
top is independent, bottom is dependent
Step-by-step explanation:
top has only 1 answer, bottom has infinite answers
We would apply the formula for calculating simple interest which is expressed as
I = PRT
where
I is interest after time t
P is the principal or initial amount
R is the interest rate
T is the time in years
From the information given,
P = 52600
R = 8.5/100 = 0.085
t = 82 days
We need to convert 82 days to years. Recall,
365 days = 1 yr
82 days = 82/365 = 0.2246575
Thus, t = 0.2246575 year
Substituting these values into the formula, we have
I = 52600 x 0.085 x 0.2246575
I = 1004.44
The interest is $1004.44
The number of intersections of the graphs of the equations is the number of solutions of the system.
The system is:
(1/2)x + 5y = 6
3x + 30y = 36
If you multiply the first equation times 6 you get to:
6(x/2) + 6(5y) = 6(6)
=> 3x + 30y = 36
And that is the same second equation, that means that the system is indetermined.
Being the two equations the same, the two graphs are superposed.
So there are infinite intersections.
Answer:
x = 19/2 hope it goes well
