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How do I solve simultaneous equations?

Always follow the same three steps : equating – substracting – substituting but you can have different cases : Case 1 : we only need to multiply one equation Example: 2x+5y=9 6x-4y=8 Note : Always check firs...
RZ
Answered by Roxane Z. • Maths tutor
5834 Views

Can you help me understand adjective agreements please?

Adjective Agreements The following are simple points to remember in order to avoid losing marks in an exam for forgetting to make adjectives agree . It is important to be able to check and correct your own w...
CE
Answered by Carolyn E. • French tutor
5416 Views

Why are GORE-TEX type materials are waterproof and yet breathable?

The material is made up from nylon laminated with a PTFE / polyurethane membrane. The m embrane is too fragile on its own hence why it is combined with the nylon. T he h oles in membrane are too small for wa...
LB
Answered by Lily B. • Chemistry tutor
5013 Views

Why do lasers produce an intense coherent beam of light?

Lasers produce an intense coherent beam of light because the waves have the same frequency, are in phase with each other and have a low divergence.
LB
Answered by Lily B. • Physics tutor
6046 Views

What is the difference between a metaphor and a simile?

A simile is a figure of speech that refers to comparable phrases that are alike in some way (e.g. 'as black as coal'). Contrastingly, a metaphor is a figure of speech that is applied without being the litera...
DO
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