Crystal paid $81 for a dress thathas been ?

Question

crystal paid $81 for a dress thathas been discounted 25% and then marked down an additional 10% taking both discounts into consideration find the original price of the dress?

Answer 1

81* 1.25=101.25 *1.1=111.375 or $111.38

Answer 2

since she paid 81$ TOTAL for the dress, work backwards.

since the 10% was taken off last, set up your equation as X times 0.9 (meaning 90% because you already know 10% was taken off) equals 81, since she ended up paying 81$, then solve for X by dividing 0.9 to both sides

81 = X times 0.9

X = 90$

so you know that 9$ was taken off

then since an addition 25% was taken off, repeat the same process.  set it up as 90$ equals 0.75 times X

90 = 0.75 times X

X = $120.

the original price of the dress is $120.

Answer 3

81/9 x 10 = 90

90/75 x 100 = 120

Answer 4

81 = (1 - 10%) * (1 - 25%) * x

= 0.9 * 0.75 * x

= 9*3*x / 10*4

= 27x / 40

x = 81 * (40 / 27)

= 120

original price = $120