Question

MEDAL AND FAN FOR WHOEVER HELPS ME SOLVE SOME QUESTIONS!!!!!!!!!

Ella spent her whole allowance of $2.00, plus the 16¢ she had left over from last week, on
bubble gum. If the pieces of gum had been a penny cheaper, she would have received three
more pieces than she did. How many pieces did she actually buy?

(A) 8 (B) 9 (C) 16 (D) 24 (E) 27

Answer 1

@goformit100

Answer 2

let cost of bubblegum =x
cost of bubblegum if got 1 penny cheaper = x-1
let it buy n bub for 2$ 16 cent or 216 cent
let it n bubble gum for x each -> nx=216 1
let it buy n+3 bubble for x-1 ->(n+3)(x-1)=216 2
now solve 1 and 2

Answer 3

The equation that you have given me, is something that I can't solve. I need help with solving that equation.

Answer 4

nx +3x-n-3 =216
x=216/n
=216+3*216/n-n-3=216
3*216=n(n+3)
648=n^2+3n
n= 24,-27 neglecting -27
n=24 bubblegums

Answer 5

@harpreetsk Is there any easier way to explain on what you did? Because I simply dont get it.

Answer 6

basicly i simlified equation 1 and 2 first as xn=216 so x=216/n .........p and simplified other by multiplying it to get nx +3x-n-3 =216 .....q then substituted pp in q and simlyfied it

Answer 7

no convert cost into penny as the changes are given in penny