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Solve the following simultaneous equations: 3x+1-2y=0 and 8-x=y

3x+1=2y rearrange16-2x=2y multiply by 23x+1=16-2x solve for x by eliminating y5x=15 rearrangex=3y=8-x=8-3=5 find y using xx=3, y=5

BH
Answered by Ben H. Maths tutor
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Explain how a physical factor can change the shape of flood hydrographs

Physical factors have a huge effect upon the shape of flood hydrographs. The main factor would be the climate of the area that the river flows in, which dictates the volume of precipitation; usually ordai...

Answered by Geography tutor
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Why do the concentrations of Glycerate-3-phosphate in the chloroplast decreases after dark?

Glycerate-3-phosphate is a compound made during the calvin cycle in the leaf stroma. The calvin cycle is a light independent reaction, so continues when the light concentration decreases. To convert Glyce...

Answered by Biology tutor
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Find the derivative of e^3x

You keep e3x and times it by the derivative of the power so 3e3x.

Answered by Maths tutor
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Differentiate and then integrate: x^2 + 3x

To differentiate, the rule is to bring the power down to the front and multiply the expression, then take one off the value of the power, for example: d/dx(x2) = (2)x2-1 = 2x, so the...

Answered by Maths tutor
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