Koh Shiwei Isaac's answer to Abigail Martinez's Secondary 3 A Maths question.
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The idea of this question is to find the two simultaneous equation to solve the question.
to derive the second equation, consider the fact that 60% of solution A + 85% of solution B would yield the 65% we need in the mixture.
to derive the second equation, consider the fact that 60% of solution A + 85% of solution B would yield the 65% we need in the mixture.
Date Posted:
7 years ago
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