please show work. i want to better understand how to solve this kind of question. thanx
2007-09-03 19:28:24 · 16 answers · asked by Zaq1 2 in Science & Mathematics ➔ Other - Science
$32. After the discount, the buyer is paying 75% of the list price. Algebraically, $24 = 0.75 L, where L is the list price. This is easily solved.
2007-09-03 19:33:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The book was sold on 25% discount which means that the guy got at 75% of the actual selling price so this is a simple case of cross multiplication.Let me show you the calculation:
75% = 24$
100% = ?
Therefore 100*24/75
= 2400/75
= 32$
so the magazine without 25% discount would be 32$.
2007-09-04 02:47:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The original cost of the magazine is $32.
Since 24 is the discounted price and forms 75% of the actual price. Just divide 24 by 3 then multiply the answer by 4.
2007-09-04 09:54:08 · answer #3 · answered by emz 1 · 0⤊ 0⤋
Dude , when you divide something by 25%, that means your dividing it by four. 1/4=25%;2/4=50%;3/4=75% and 4/4 or 1= to 100%.
If the discount is 25%, then you are removing 1/4th part of your cover price. that means that 24 dollars is 3/4 of the cover price.
24/3 = 8. ;
24 (which is 3/4 or 75%) + 8 (which is 1/4 or 25%) equals 32 bucks.
2007-09-04 02:47:22 · answer #4 · answered by Ian O 2 · 0⤊ 0⤋
25% is 1/4 , so $24 = 3/4 * C
8= 1/4 * c
32 = C
magazine cost is $32
2007-09-04 02:37:58 · answer #5 · answered by mark 6 · 0⤊ 0⤋
Everyone else is basically right; I'll just show you how I would reason it.
A "discount" means you're taking away some of the full price. So if P is the price, then [1P - .25P] means "the full price" minus "a percentage of the full price."
Then you get:
1P - .25P = $24
.75P = $24
P = 24/.75 = 32
In general, once you get an answer, go back and think about if it makes sense. If the magazine on sale was $24, then you know the original price was more (who goes to a sale that jacks the price up?!). If you had gotten a number smaller than $24, then you know it would be wrong.
2007-09-04 11:47:29 · answer #6 · answered by tamar718 1 · 0⤊ 0⤋
let x= original price
x-25%=24
24= 75%
24+25% of x= x
24 multiplied by 1/3= 8 because 24= 75% and 1/3 of 75% is 25%, so 100% divided by 25% is 4
and 8 multiplied by 4= 32(x)
Pretty complicated ha? In Philippine Science High school we do it like that.
2007-09-04 05:29:26 · answer #7 · answered by Grapher 1 · 0⤊ 0⤋
cost of magazine = x
amount given = 75% of x (because 25%discount) = 24$
75/100 x = 24$
x=24$*100/75
x=32$
2007-09-04 03:07:29 · answer #8 · answered by karthikthehun 1 · 0⤊ 0⤋
Thirty two bucks. What magazine costs THAT much?
Oh, I took 24 and divided by three and then added the result. 24 / 3 = 8/ 24+8=32.
2007-09-04 02:39:12 · answer #9 · answered by Warren D 7 · 0⤊ 0⤋
24/.75=32 you are paying 75% of the price, divide what you are paying by the real number of the %, it will give you the total.( you can substitue 3/4 for .75)
or you could divide 24 by 3 get 8 and multiply that by 4 and get 32
2007-09-04 02:38:14 · answer #10 · answered by Jamie * 4 · 0⤊ 0⤋