If we sell a wallet at 30% off,it is ＄72 cheaper than we sell it at 10% off.
What is the marked price of the wallet?
中一數學題
2010-08-29 9:25 pm
回答 (2)
2010-08-29 9:30 pm
✔ 最佳答案
Solve:Let the marked price of the wallet is ＄x .
(1-30%)x=(1-10%)x-72
0.7x=0.9x-72
0.2x=72
x=360
∴The marked price of the wallet is ＄360.
參考: Hope I can help you
2010-08-29 9:30 pm
If we sell a wallet at 30% off,it is ＄72 cheaper than we sell it at 10% off.
What is the marked price of the wallet?
Let $x be the marked price,
x(1-30%) + 72 = x(1-10%)
0.7x + 72 = 0.9x
0.2x = 72
2x/10 = 72
x/10 = 36
x = 360
The marked price is $3600
What is the marked price of the wallet?
Let $x be the marked price,
x(1-30%) + 72 = x(1-10%)
0.7x + 72 = 0.9x
0.2x = 72
2x/10 = 72
x/10 = 36
x = 360
The marked price is $3600
參考: Hope the solution can help you^^”
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