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Tom starts with 50 balls. Amy starts with 28 balls. If Tom gives 22 balls to Amy, what percentage of balls does Tom have compared with Amy?

This question requires 2 logical steps. The first is to calculate how many balls Tom and Amy have after the transaction. The second is to use a formula to calculate the percentage of balls left . Reading the...
DD
Answered by Dominic D. • Maths tutor
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Describe two problems faced by President Roosevelt from the opposition to the New Deal

Must identify two problems and expand on each one to get full marks:FDR faced opposition from the Supreme Court as they ruled some aspects were unconstitutional, thus preventing legislation and progress. it ...
HR
Answered by Hannah R. • History tutor
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What is meant by the term opportunity cost?

It is defined as the value of the next best alternative forgone.
AP
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Show that x^2 +6x+ 11 can be written as (x+p)^2 +q

x 2 +6x +11this is a quadratic so we try to factorise it. x 2 +6x can be turned into (x+3) 2 -9 and we plus the 11 from the beginning so the final answer should look like (x+3) 2 +2 and thus p=3 and q=2.
AM
Answered by Abdullahi M. • Maths tutor
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How may allopatric and sympatric speciation be distinguished? (4 marks)

First it is important to establish what a species is. A species is a population of similar organisms that can interbreed to produce fertile offspring; meaning they are reproductively isolated from other such...
GL
Answered by Gabrielle L. • Biology tutor
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