Answer:
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Step-by-step explanation:
Answer:
The total amount of interest Samantha will pay=$40,842.47
Step-by-step explanation:
Step 1: Determine expression of total interest amount to be payed
The expression for the total interest amount to be payed inclusive of interest is given by;
A=P(1+r/n)^(nt)-P
where;
A=total amount of interest to be payed
P=principal loan amount
r=annual interest rate
n=number of compounding periods in a year
t=number of years
In our case;
P=$40,000
r=4.7%=4.7/100=0.047
n=12
t=15 years
replacing;
A=40,000(1+0.047/12)^(12×15)-40,000
A=40,000(1.00392)^180-40,000
A=40,842.46821
The amount rounded of to the nearest cents=1/100=0.01, round off to the nearest 2 decimal places=40,842.47
The total amount of interest Samantha will pay=$40,842.47
What do you mean, "solve"?
y = -4(x-2)² + 4
the line is a parabol with a maximum (2;4)
it's roots are -4(x-2)² + 4 = 0 => (x-2)² = 1 => x-2 = 1 => x = 3
=> x-2 = -1 => x = 1
symetrical axe: x = 2
is that all you need?
<h3>Write an equation that will match the story problem</h3>
<em><u>Solution:</u></em>
Given that,
David goes into a candy store with $5.00
Total amount with David = $ 5
He buys 9 peppermints for $0.15 each
And some sour candies. each sour candy costs $0.25
The equation is:
Let the number of sour candies bought be "x"
Then,
Remaining amount after buying pepper mint = 
Each sour candy cost $0.25
<em><u>Now the number of sour candies bought is:</u></em>
x = 14.6
Thus david can buy 14 sour candies
<em><u>Thus the equation that will match the story problem is:</u></em>
Where, "x" means number of sour candies bought
