Answer:
Step-by-step explanation:
{y = 5x - 2
{x + 4y = 8
Use the Substitution Method:
x + 4[5x - 2] = 8
x + 20x - 8 = 8
21x - 8 = 8
+ 8 + 8
__________
21x = 16
____ __
21 21
x = 16⁄21 [Plug this back into both equations above to get the y-coordinate of 1 17⁄21]; 1 17⁄21 = y
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Answer:
RS 44,000
Step-by-step explanation:
The compound interest formula is FV = PV(1 + r)ⁿ. Where FV = Future value, PV = present value, r = rate and n = no of years.
Since Purnima loans RS 100,000, PV = 100,000. Which is the amount she lends to her friend. She lends to her friend at a rate of 10% compound half yearly which equals r = 10% ÷ 1/2 year = 20% per year = 0.2. Since she lends her friend for two years, n = 2.
So, FV = PV(1 + r)ⁿ = 100,000(1 + 0.2)² = 100,000(1.2)² = 144,000
So, her profit is FV - PV = 144,000 - 100,000 = RS 44,000
Answer:
c = V/((r^3)-72.25r)
Step-by-step explanation:
V is proportional to c, so you can simply divide by the coefficient of c.
c = V/((r^3)-72.25r)