最佳回答20分！F.1 Maths (percentage)

2007-01-13 6:10 am

The selling price of a pair of shoes is $900. The profit percent is 20%.
What is the cost price of this pair of shoes?

Plz給我列式和答案
可以不用write部步驟

回答 (17)

2007-01-13 6:13 am

✔ 最佳答案

= 900 / (1+20%)

= 900 /1.2

= 750

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2007-01-13 6:14 pm

900÷(1+20%)
=750

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2007-01-13 6:20 am

Let $x be the cost price of this pair of shoes.
x(1+20%)=900
1.2x=900
x=750
So, the cost price of this pair of shoes is $750

參考: me

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2007-01-13 6:20 am

Let X be the cost
x(1+20%)=900
1.2X=900
X=$750

The cost price of this pair of shoes is $750

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2007-01-13 6:16 am

900/(1+20%) = 750

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2007-01-13 6:15 am

900 / (1+20%)
=900/120%
=$750

參考: me

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2007-01-13 6:14 am

The cost price is:

$900 / (1+20%)
=$750

Hoped this helps!^^

參考: Cost price X (1+profit percent) = selling price

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2007-01-13 6:14 am

900x(1-20%)
=$720

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2007-01-13 6:13 am

900-900x0.2
=$720

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2007-01-13 6:12 am

900*(1+20%)
=$1080

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