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Solve the simultaneous equation by elimination: 3x + y = 11 and 5x + y = 4

Simultaneous equations have at least two unknowns that must have the same value in each equation. This means the value of x and y in both equations must be the same. To solve this by elimination, the aim is ...
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Answered by Moyin A. • Maths tutor
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What are the possessive adjectives in French?

The possessive adjectives in French indicate that something belongs to someone. For example: my pen, her house, our school.In French they are as follows:My: mon, ma, mesYour (singular): ton, ta, tesHis/Her/I...
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Answered by Dakota R. • French tutor
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What is the separation of powers in US politics?

The separation of powers is where the political system is divided into three 'branches' and power is divided between these branches. These branches are: the legislature (the body that makes laws - in the US ...
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How do waterfalls form?

Waterfalls form where a river is flowing over hard rock lying on soft rock. The soft rock is eroded faster, so there is a step in the river which deepens over time. It is eroded by hydraulic action and abras...
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Answered by Dakota R. • Geography tutor
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The roar of a tiger in a zoo can be heard by visitors at the entrance, even though the tiger can not be seen because there is a hill in the way. Name and explain this effect.

This effect is called diffraction. This occurs when waves spread over obstacles or through gaps.
MC
Answered by Matilda C. • Physics tutor
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