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secondary 2 | Maths
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Vani
Vani

secondary 2 chevron_right Maths chevron_right Singapore

I need help with this along with clear explanation

Date Posted: 4 years ago
Views: 242

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June
June's answer
14 answers (A Helpful Person)
1st
Qn 1a) Combine the 2 expressions into 1 expression using common denominator, which in this case its 10. Solve the expression from there after.
b) Method is the same as 1a.
Vani
Vani
4 years ago
The steps are not given correctly
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June
June's answer
14 answers (A Helpful Person)
For equalilatetal triangle, all 3 sides will have the same length. Thus, since qn has given JL=10cm;
and the other 2 sides of length to be (x+y) and (3x-y) respectively. The other equation would be 3x-y=10.

In terms of solving, u can either use elimination method by removing y and solve for x. Alternatively, using substitution method (as above) works well too by either setting x or y as the subject