Well, there are two solutions.
Add both sides by 15.75 then from here, you can use quadratic formula.
So your answer should be x = -2.44949 or 2.44949.
You could do 21-5 and get the answer 16
A= 16+5 = 21
So therefor, he is 16 years old now.
Answer:
7/18
Step-by-step explanation:
4(2d - 6) + 6c
I think this is right? Hopefully it's right! I checked it, I think. Well, good luck!
The amount deposited initially is $ 706.22
<em><u>Solution:</u></em>
<em><u>The formula for amount using compound interest is given as:</u></em>

Where,
A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit or loan amount)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per unit t
t = the time the money is invested or borrowed for
From given,
t = 7 years
A = 1000
P = ?

n = 4 (since compounded quarterly)
Substituting the values we get,

Thus amount deposited initially is $ 706.22