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Question
primary 5 | Maths
| Whole Numbers
One Answer Below
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Pls help
Date Posted: 4 months ago
Views: 148
5p-2n = $28.90-$18.20 = $10.70
10p-4n = 2×$10.70 = $21.40
5×2p+5×5n = 5×$18.20
10p+25n = $91
29n = $91-$21.40 = $69.60
1n = $69.60÷29 = 2.40
1p
= ($18.20-5×$2.40)÷2
= $3.10 (Ans)
10p-4n = 2×$10.70 = $21.40
5×2p+5×5n = 5×$18.20
10p+25n = $91
29n = $91-$21.40 = $69.60
1n = $69.60÷29 = 2.40
1p
= ($18.20-5×$2.40)÷2
= $3.10 (Ans)
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Date Posted:
4 months ago
Thanks for you offer, I will talk to my parent. Anyway need to ask why the second is multiply by 7 instead of 2?
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