<span>Interest = Principle * rate * time
I = PRT
</span><span>P = 1000
R = 2.5% -- change to a decimal = .025
T = 3
</span>
<span>
now we sub
I = PRT
I = (1000)(.025)(3)
I = 75
so at the end of 3 years, there will be : 1000 + 75 = $ 1075 in the account</span>
X = Ishaan
y = Christopher
3y = x
x = y + 14 Put the first equation into the second.
3y = y + 14
2y = 14
y = 7
Christopher is 7
Ishaan is 21