Anonymous's answer to Calisto Yeow's Secondary 1 Maths Singapore question.
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X+5
Date Posted:
4 years ago
Nope.
Since the AVERAGE mass of the 3 boxes is x kg,
Total mass of the 3 boxes is 3 * x = 3x kg.
Add the 5 kg box and and the total is (3x + 5) kg.
Since the AVERAGE mass of the 3 boxes is x kg,
Total mass of the 3 boxes is 3 * x = 3x kg.
Add the 5 kg box and and the total is (3x + 5) kg.
Thx
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