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Michael is saving for new iPhone. He gets £30 as pocket money per week, however he spends 20% of the whole amount for leisure and his savings only consists of the residue amount. If an iPhone costs £600 how many weeks would Michael need to save for it?

Given: £30 pounds per week 20% = 0.2 = 1/5 - spending on leisure To find: a) Residue amount (Ra) b) How many weeks does Michael need to save (Tw) Solution: a) To the find residue amount we must remove the le...
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Answered by Nikola N. • Maths tutor
3888 Views

Write the recurring decimal 0.0755... as a fraction in its lowest terms

The first step is to write x=0.0755... For this question the number that is recurring here is the 555…so what we want is to get two equations with the same recurring part after the decimal point. By multiply...
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Answered by Bukky O. • Maths tutor
6385 Views

Expand (x+3)(2x+9)

(In terms of formatting, we'll use little x "x" to mean the algebraic variable, and big x "X" to mean multiply). When we see two sets of brackets written next to each other, such as (...)...
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Answered by Luke B. • Maths tutor
9323 Views

How to find an original price from a reduced percentage.

Take the example: 'The price of a TV is reduced to 69% and is now £379.50. Find the original price. (This means find the price when it was at 100%.) Let's start by calling each percentage a 'part'. The new p...
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Answered by Phoebe E. • Maths tutor
13138 Views

What is a coordinate?

It is a point on a graph described by its numerical values. For example (2,3) would be 2 along the x-axis and 3 along the y-axis.
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Answered by Edward S. • Maths tutor
4244 Views