Level 3 1.
Fatima has $207 in her account. A $7.25 fee is charged each month the balance is below $100.
She withdraws $120 one time.
a.
Write an equation to model her balance after x months since the withdrawal, if she makes no
further deposits or withdrawals.
b. Solve for y when x=4. What does that mean in this context?
C.
After how many months will Fatima's balance reach $0 or below?

equal to

step-by-step explanation:

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation:

i think this is a open ended question but i agree with other guy who said you should ask it at english section