Hi ive finally decided to fight the gremlins and learn maths my worst subject, as i need it for my nursing. Could anyone help me with this questiuon
a coat is reduced to 88pounds in a 20% off sale what was its pre sale price. Also does anyone know of any good books i can get for level 1 -2 maths. Thankyou for your help
2007-06-27 05:02:11 · 4 answers · asked by Angel1 3 in Science & Mathematics ➔ Mathematics
A 20% reduction yields 88:
x * (1 - 0.20) = 88
x * 0.8 = 88
x = 88/0.8
x = 110
2007-06-27 05:09:54 · answer #1 · answered by McFate 7 · 0⤊ 0⤋
Let
P = presale price
D = discount amount
translation tip:
"20% off sale" means
discount percentage = 20 % of presale price
so,
discount amount = D
D = (20/100) * P = .2P
"a coat is reduced to 88pounds" means
P - D = 88
P - (.2P) = 88
(1 - .2) * P = 88
.8 * P = 88
P = 88 / .8 = 110
presale price = 110 pounds
2007-06-27 12:23:55 · answer #2 · answered by buoisang 4 · 0⤊ 0⤋
Let s = pre-sale price of coat
Equation:
s - (0.2x) = $88
0.8s = $88
s = $88 / 0.8
s = $110
Please ask your professor what textbook is he/she is prescribing to you for the whole semester then ask his or anybody else's assistance.
2007-07-01 10:23:14 · answer #3 · answered by Jun Agruda 7 · 2⤊ 0⤋
let x be original selling price----
x-x*(20/100)=88
x-x*(1/5) =88
(5x-x)/5=88
x=(88*5)/44
x= 110
2007-06-27 12:12:49 · answer #4 · answered by yuv 1 · 0⤊ 0⤋