Please help me to answer it!
(1)Yan rememders that in a shop,a customer paying by a credit card can have a discount of 12%.She buy a air-conditioner and a cooker and the marked price of cooker is $845.If she uses her card to buy,she can save $88.4.what is the marked price of air-conditioner?
maths...F.1..Help,please
2007-03-30 6:50 am
回答 (4)
2007-03-30 7:11 am
✔ 最佳答案
a*12%=88.4a=88.4/12%
a=736.6
2007-03-30 9:09 pm
She buy a air-conditioner and a cooker and the marked price of cooker is $845.
Let a be the price of air-conditioner
(a + 845) x 12% = 88.4
a(12%) + 845(12%) = 88.4
a(12%) = 88.4 - 101.4
0.12a = -13 ?????????
Let a be the price of air-conditioner
(a + 845) x 12% = 88.4
a(12%) + 845(12%) = 88.4
a(12%) = 88.4 - 101.4
0.12a = -13 ?????????
2007-03-30 6:59 am
Let y be the marked price of air-conditioner
y X 12%=88.4
y=88.4/12%
y=736.666
the marked price of air-conditioner $736.666
y X 12%=88.4
y=88.4/12%
y=736.666
the marked price of air-conditioner $736.666
2007-03-30 6:58 am
the answer is $455
2007-03-29 23:00:53 補充：
88.4-845X12%=54.654.6/12%=455
2007-03-29 23:00:53 補充：
88.4-845X12%=54.654.6/12%=455
參考: me
收錄日期: 2021-04-12 20:22:32
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