The total mass of 4 cartons of milk and 7 bottles of apple juice is 2.38 kg. The total mass of 2 cartons of milk and 3 bottles of apple juice is 1.1 kg. Find the mass of a carton of milk. Give your answer in kg.
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Let
The mass cartoon be 'x'
The mass of bottle of apple juice be'y'
According to the question
4x➕ 7y equals to 2.38.....(1)
2x➕ 3y equals to 1.1........(2)
(2)❌ 2 equals to
4x➕ 6y equals to 2.2.....(3)
Solving (2) and (3)
We get y equal to 0.18
Substitute y in (1)
We x equal to 2.8
Therefore mass of cartoon and mass of bottle are 0.18 and 2.8 respectively.
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