raffle tickets are being sold for a fundraiser. The relationship between n, number of raffle tickets sold, and A, amount of money in dollars raised, is given by the function below. A(n)=3n-20 What is the equation of the inverse function N(a)?

D. N(a) = (a + 20)/3

Step-by-step explanation:

A(n) = 3n - 20

A is a function of n. The inverse will be: N is a function of a.

Change A(n) to y and n to x.

y = 3x - 20

Switch x and y.

x = 3y - 20

Solve for y.

x + 20 = 3y

3y = x + 20

y = (x + 20)/3

Now switch y to N(a) and x to a.

N(a) = (a + 20)/3

The inverse is (n+20)/3

Step-by-step explanation:

a(n) = 3n - 20

Let this equal y

y = 3n-20

Exchange y and n

n = 3y-20

Solve for y

add 20 to each side

n+20 = 3y-20+20

n+20 = 3y

Divide each side by 3

(n+20)/3 = 3y/3

(n+20)/3 = y

The inverse is (n+20)/3

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation: