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primary 5 | Maths | Angles & Geometry
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Syafeenaz
Syafeenaz

primary 5 chevron_right Maths chevron_right Angles & Geometry chevron_right Singapore

Need your help

Date Posted: 1 year ago
Views: 83
Peachy
Peachy
1 year ago
1) Given that:
6sweets + 10jellies = 6.80

2) So let's halve of the above:
3sweets + 5jellies = 3.40

3) Also given:
10sweets + 5jellies = 5.50

When 3) - 2)
There will be zero jellies left
Left 10sweets - 3sweets = 5.50 - 3.40
7sweets = 2.10
Hence, 1sweet = 2.10/7 = $0.30

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Qi Hui
Qi Hui's answer
3 answers (Tutor Details)
1st
I am using substitution of algebraic expressions here.
Syafeenaz
Syafeenaz
1 year ago
Dont understand algebra. Sorry but thank you for working out for me .
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Phylicia Tong
Phylicia Tong's answer
192 answers (A Helpful Person)
Hope this helps.
Zhining
Zhining
1 year ago
Hi, just wanted to say alternatively, we can consider finding 3 sweets and 5 jellies ($3.40) which leads to same answer
7 sweets 5.50 - 3.40 = 2.10
1 sweet 2.10/7 = 0.30
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Keith Lincoln Lee
Keith Lincoln Lee's answer
258 answers (Tutor Details)
Hope this helps