What is the value of y? 3(y+5)=–2y
1 answer:
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<h2>The required "option A) 
" is correct.</h2>
Step-by-step explanation:
We have,
..... (1)
To find, = ?
Differentiating equation (1) w.r.t. 'x', we get
⇒
[ ∵ ⇒
]
⇒
⇒
Thus, the required "option A) " is correct.
Formula for compound interest: A = P( 1 + r/n)^nt
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
^ = I used this symbol to present that a the number needs to go higher (see picture)
1. 500(1 + 2/100)^2 = 520.2
£520.20
2. 400(1 + 1.75/100)^2 = 414.12
£414.12
