A clothing store offers 50% discount at the end of each week an item remains unsold. Patrick wants to buy a shirt at the store and he says, "I've got a great idea I'll wait two weeks, have 100% off, and get it for free." Explain to Patrick why he is incorrect and find the correct percent of discount on the original price of a shirt.
STEP BY STEP please =[ i dont get it ......................i noe Patrick is wrong but why? =[
2006-12-26 17:18:11 · 6 answers · asked by anonymous 2 in Science & Mathematics ➔ Mathematics
After the first week, the shirt will be 50% or 1/2 of its original value. If the shirt initially cost $10, it will now cost $5.
But after the second week, the shirt will cost 50% of its value from the previous week. That's 1/2 of $5 or $2.50.
So the price after two weeks will be 1/2 x 1/2 x the original price, or 1/4 (25%) of the original price. That's a 100% - 25% = 75% discount, which is still a very good deal.
2006-12-26 17:24:05 · answer #1 · answered by Jim Burnell 6 · 0⤊ 0⤋
Say that the price of the shirt is x
week 1 - (50% of x)
week 2- 50% of (50% of x)
2006-12-27 06:37:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The price will always go half of the last price. So if the first price was $20, then the next week it will be $10, the $5 the next week, $2.50 the next, and so on. This pattern will keep going on. The price will never be exactly 0.0. The price will still go down in decimals.
2006-12-27 02:07:10 · answer #3 · answered by Robby_G 2 · 0⤊ 0⤋
50% of 50% of the price of the shirt
50% X 50% X the price of the shirt
.5 X .5(theprice of the shirt)
it would be 25 % of the original price
2006-12-27 01:33:57 · answer #4 · answered by Angie 1 · 0⤊ 0⤋
it is 50 % of the current price
so after weeks it is 75%
2006-12-27 01:21:45 · answer #5 · answered by gjmb1960 7 · 0⤊ 0⤋
at the end of second week, price goes down to 50% of the price from 1st week, so it's 0.5*0.5=0.25 of the original price.
2006-12-27 01:23:19 · answer #6 · answered by Anonymous · 0⤊ 0⤋