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Xiao Fang bought five boxes of sugar and Xiao Ming bought four boxes of biscuits, which cost 44 yuan. If two people exchange one box for another, the value of the two people's goods will be equal. How much are a box of sugar and a box of biscuits;
Let X Yuan for each box of candy and Y yuan for each box of biscuit
5x+4y=44
4x+y=3y+x
The solution of the equation is x = 4, y = 6
So, candy is 4 yuan per box, biscuit is 6 yuan per box
Xiao Fang bought five boxes of sugar, Xiao Ming bought four boxes of biscuits, a total of 44 yuan, if exchange a box, two prices are equal, a box of sugar and a box of biscuits are how much
Let a box of sugar be x yuan
A box of cakes is y yuan,
Series equation 5x + 4Y = 44
4x+y=22
Bruce Lee paid 44.2 yuan for 1 kg of candy and 3 kg of biscuits. Xiao Li paid 24.2 yuan for the same candy and biscuits
Bruce Lee paid 44.2 yuan for one kilogram of candy and three kilogram of biscuits. Xiao Li paid 24.2 yuan for one kilogram of candy and one kilogram of biscuits. How much is each kilogram of candy and biscuits?
Biscuit (44.2-24.3) / (3-1) = 10 yuan
Candy 44.2-10 × 3 = 14.2 yuan
Answer: candy is 14.2 yuan per kilogram, biscuit is 14.2 yuan per kilogram
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