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secondary 4 | E Maths
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secondary 4 chevron_right E Maths chevron_right Singapore

help please. i can’t understand.
the ans is 18

Date Posted: 11 months ago
Views: 78

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Sin Yee
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336 answers (Tutor Details)
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Chua Tze Ren
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15 answers (Tutor Details)
Hi, hope this helps! For this question, it is important to understand HOW the inequality is formed (on the left hand side, is Shirley's total score, the score she gets for her correct answers minus the score she is deducted for wrong answers while the right side is her score, 66 marks or less)