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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
29779 Views

How do you go about rearranging equations where the required subject appears on both sides? Such as making x the subject of 7x + a = 3x + b.

To rearrange any equation, you must always do the same to both sides. If you take a number from one side, you must also take it from the other. If you divide a side by one number you must divide the other by...
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Answered by Rachael T. • Maths tutor
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A guanine is swapped for a thymine in a gene sequence. Explain how this may alter the function of the protein it translates.

The alteration in the nucleotide sequence of the gene may result in a change in the amino acid sequence of the protein during translation. Each set of three RNA nucleotides (anticodon) is recognised by a rib...
MD
Answered by Matthew D. • Biology tutor
4423 Views

How do I form the subjunctive?

The subjunctive in French can be really hard to get your head around - particularly as it's something we're not really used to in English! But luckily, forming the subjunctive is actually a really simple pro...
HW
Answered by Hannah W. • French tutor
3484 Views

Describe how plants react to the environmental factor of Light

One environmental factor which has an effect on a plant is light. The stems of a plant grow towards the light, and roots grow away from the light. We call this phototropism (Photo = Light and Tropism = movem...
EA
Answered by Ellie A. • Biology tutor
2807 Views