Megan bought four identical scarves for her four friends that were all 30% off, and paid 420 yen (lol its a problem from japanese school :0)) ..... what is the original price of ONE of the scarves?
2006-11-19 09:08:16 · 7 answers · asked by Seira T 1 in Science & Mathematics ➔ Mathematics
So Megan paid 105 yen for one scarve which was 30% off.
Let's say x is the original price of one scarf. So x- 30%x = 105
We can also write: 70%x = 105
So x = 105/70% = 150 yens
2006-11-19 09:14:23 · answer #1 · answered by Anonymous · 2⤊ 0⤋
okay
so
420 yen = 70%
60 yen = 10%
420 + (3 times 60) = 600 yen = orginial cost of 4 scarves
so cost of ONE scarf is 600 divied by 4
= 150 yen
2006-11-19 17:14:38 · answer #2 · answered by pinkfudge27 4 · 0⤊ 0⤋
420=.7x
x=420/.7= 600 yen for all 4 scaves
one scarf =600/4= 150 yen original price
2006-11-19 17:14:28 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
Each scalf was bought at 420/4 = 105 yen
The original price was price was reduced by 30% (i.e. it was multiplied by 0.7) to get 105 yen.
So to get back to the original we divide by 0.7 to get 150 yen
2006-11-19 17:14:30 · answer #4 · answered by coolman9999uk 2 · 0⤊ 0⤋
150 yen
2006-11-19 17:12:01 · answer #5 · answered by R 2 the T 2 · 0⤊ 0⤋
420/(4*0.70)
=420/2.8
=150 yen per scarf
2006-11-19 17:12:34 · answer #6 · answered by raj 7 · 0⤊ 0⤋
4x - 4x(.3) = 420
4x - 1.2x = 420
2.8x = 420
x = 150
ANSWER
150 yen
2006-11-19 17:14:22 · answer #7 · answered by trackstarr59 3 · 0⤊ 0⤋