5n+3+4n=30 Combine like terms
9n+3=30 Subtraction property of Equality
9n=27 Division Property of Equality
n=3
25 x (1-.72) = 25 x .28 = 7
50 x .46 = 23
7 + 23 = 30
Answer:
Option A
Step-by-step explanation:
62 and x are consecutive supplementary angles and so, x = 180 - 62 = 118
And this makes the lines parallel
Slope formula : (y2 - y1) / (x2 - x1)
set 1 : (12,7)....x1 = 12 and y1 = 7
set 2 : (9,6)....x2 = 9 and y2 = 6
now we sub
slope = (6 - 7) / (9 - 12) = -1/-3 = 1/3 <==
The nominal value - without discounting the inflation rate - of income was $ 3000.
If the interest rate was 6%, a rule of three is enough to find the value of the original investment.
3000 - 6%
x - 100%
x = 50,000
The value of the investment was $ 50,000
In this case, the inflation rate also requires a simple calculation.
Inflation corroded $ 1000 dollars of income of $ 3000
Therefore the inflation rate will be 1000/3000 = 33.3%