Applications of Simultaneous Linear Equation in Two Unknowns
How to do?
Leo buys some apple-flavoured candies at $40per kg and some orange-flavoured candies at $60 per kg.He mixes these two candies to get a mixture of 40 kg and sells it for $81 per kg, making a profit of 50%. How many kg of each kind of candy are there in the mixture?
F.2 Maths----- Linear Equations in Two Unknown
2007-01-07 4:20 am
回答 (2)
2007-01-07 4:56 am
✔ 最佳答案
weight of apple-flavoured candies---(A)weight of orange-flavoured candies---(R)
earn:$81x40kg
=$3240
price he paied:3240/(150%)
=$2160
- A+R=40
- 40A+60R=2160
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- A=40-R
40(40-R)+60R=2160
1600-40R+60R=2160
20R=560
R=28
A+28=40
A=12
there're 12kg of apple-flavoured candies and 28kg of the orange one
參考: myself
2007-01-07 4:35 am
Apple-flavoured candies=12kg
Orange-flavoured candies=28kg
Orange-flavoured candies=28kg
收錄日期: 2021-04-13 13:31:10
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