Simon invested £20 000 at a compound interest rate of 2.5% per annum. At the end of n years the investment has a value of £V. Work out the value of V when n=2

A = $ 21,024.33

A = P + I where

P (principal) = $ 20,000.00

I (interest) = $ 1,024.33

Step-by-step explanation:

First, convert R percent to r a decimal

r = R/100

r = 2.5%/100

r = 0.025 per year,

Then, solve our equation for A

A = P(1 + r/n)nt

A = 20,000.00(1 + 0.002083333/12)(12)(2)

A = $ 21,024.33

principal plus interest,

from compound interest on an original principal of

$ 20,000.00 at a rate of 2.5% per year

compounded 12 times per year

over 2 years is $ 21,024.33.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x