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How would I solve this set of simultaneous equations using the elimination method?

Solve the following equations for x and y: x + 2y = 4 2x + 3y = 7 We are going to solve this using the elimination method. This means that we are going to either add or subtract the equations from each other...
JU
Answered by Jasmine U. • Maths tutor
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How would you go about comparing hormonal and nervous responses in mammals?

In questions like this, you must set out your answer clearly (which makes it easier for the marker to give you marks). One way of doing this is writing sentences such as: _____ in the hormonal response, comp...
RT
Answered by Rachael T. • Biology tutor
7020 Views

Explain the four processes of erosion in rivers.

Hydraulic action: This process involves air particles finding their way into the cracks of rocks. This then causes air particles to compress which adds pressure, causing rocks to break away and erode. Abrasi...
KJ
Answered by Katie J. • Geography tutor
51680 Views

What is mitosis?

Mitosis , or cell division, is a process where a single cell divides into two identical daughter cells . When answering this question it is important to be clear about what is being replicated. Simply saying...
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Answered by Claire H. • Biology tutor
10127 Views

How do you work out the old price of an item having been given the new price after a specified percentage change?

These problems can be worked out using the equation: new = old x multiplier Where: new : is the new price of an item old : is the old price of an item (before it was changed) multiplier : is the percentage o...
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Answered by Rachael T. • Maths tutor
29956 Views