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Solve the following equation: 4x + 7 = 2x - 5

Some students struggle to solve equations with unknowns on both sides. I think the easiest way to solve these types of equations is to use the balance method. This is where you treat the equation like a weig...
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Answered by Nicholas D. Maths tutor
13019 Views

Why is genetic diversity important within a population?

Genetic diversity within a population is the variety of different alleles (versions) of genes present, which lead to a variety of phenotypes. It is important for a number of reasons, such preventing inbreedi...
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Answered by Rosie S. Biology tutor
10606 Views

Why does nuclear radius decrease and first ionisation energy increase across the period?

As we move across the period electrons occupy the same outer electron shell, having roughly the same distance to the nucleus. Moving across the period nuclear charge increases as the number of protons in the...
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Answered by James M. Chemistry tutor
4172 Views

How do you approach an unseen poem?

​​​​​ Read the poem twice and think about any key themes that first jump out at you. After carefully reading the poem begin to annotate it, paying particular attention to any literary devices used by the poe...
AA
5190 Views

Which case should I use with which preposition?

All prepositions in German will be followed by a case, either Dative or Accusative. Some of these are always the same, for example, "nach" (after/according to) will always be followed by the Dative...
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Answered by David M. German tutor
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