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primary 6 | Maths
6 Answers Below
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Date Posted: 3 years ago
Views: 613
3D + 5W = 26.60 →①
Total 107% = 67.41
100% = 100÷107×67.41 = $63
These is 10% for card member.
Therefore,
90% → 63
100% → 100÷90×63 = $70
so, 10D + 10W = 70
1D + 1W = $7 → ②
3D + 3W = $21
From ①, 3D + 3W + 2W = 26.60
21 + 2W = 26.60
2W = 5.60
1W = 2.80
From ②, 1D + 2.80 = $7
1D = $ 4.20
Therefore, 1 dark chocolate
= $4.20.
Total 107% = 67.41
100% = 100÷107×67.41 = $63
These is 10% for card member.
Therefore,
90% → 63
100% → 100÷90×63 = $70
so, 10D + 10W = 70
1D + 1W = $7 → ②
3D + 3W = $21
From ①, 3D + 3W + 2W = 26.60
21 + 2W = 26.60
2W = 5.60
1W = 2.80
From ②, 1D + 2.80 = $7
1D = $ 4.20
Therefore, 1 dark chocolate
= $4.20.
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Working and answer
Date Posted:
3 years ago
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Date Posted:
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Hope it helps!
Date Posted:
3 years ago
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Hope this helps. ♥✨
Date Posted:
3 years ago
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Working and answer
Date Posted:
3 years ago
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