RM9012's answer to Ladybug's Secondary 4 E Maths question.
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I'm not sure if the ans is correct. Hope this helps.
Date Posted:
7 years ago
The answers are incorrect....
Hmm, why not u give me the final and I try if I can get the ans?
Part b: cost of paint is proportional to the surface area, not length. Use (A₁/A₂) = (L₁/L₂)²
Part c: mass is proportional to the volume, not length. Use (V₁/V₂) = (L₁/L₂)³
Part c: mass is proportional to the volume, not length. Use (V₁/V₂) = (L₁/L₂)³
Answer for part a is correct. Part b is $1,440,000. Part c is 2g
I just need help for part c. I found the answer for part b
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