sstrike's answer to Ur mom's Primary 6 Maths Algebra Singapore question.
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1 necklace : 1 bracelet
= 7 : 5
= 21 : 15
18×5+10×7
= 160
480÷160 = 3
(a)
10×7÷5
= 14 (Ans)
(b)
bracelets → 20-18 = 2
necklaces → 36-10 = 26
2×15 + 26×21
= 576 (Ans)
= 7 : 5
= 21 : 15
18×5+10×7
= 160
480÷160 = 3
(a)
10×7÷5
= 14 (Ans)
(b)
bracelets → 20-18 = 2
necklaces → 36-10 = 26
2×15 + 26×21
= 576 (Ans)
Date Posted:
3 years ago
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