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Solve 5x – 2 > 3x + 11.

We need to solve this inequality to find the value that x could be greater or less than. First, we need to find the smallest positive x value, which is 3x. Then, we minus 3x from both sides, so only one s...

Answered by Rebecca M. • Maths tutor

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There are 3 red beads and 1 blue bead in a jar. A bead is taken at random from the jar. what is the probability that the bead is blue?

1/4

Answered by Daniel M. • Maths tutor

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White paint costs £2.80 per litre. Blue paint costs £3.50 per litre. White paint and blue paint are mixed in the ratio 3 : 2 Work out the cost of 18 litres of the mixture.

Amount of paint needed:

White paint = (18 ÷ 5) × 3 = 10.8 litres

Blue paint = (18 ÷ 5) × 2 = 7.2 litres

Cost of white paint = 10.8 x £2.80 = £30.24

Cost of blue paint = 7.2 x ...

Answered by Jared M. • Maths tutor

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The population of sheep on an island is 170. The population of the sheep is expected to increase by 3% each year, what will the population of sheep be in 5 years time? [3 marks]

Information from question

Initial population: 170

Increase: 3% (=x1.03)

Years: 5

Method

Formula: initial...

Answered by Russell P. • Maths tutor

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Trigonometry: what is it, and how do I do it?

Trigonometry is used in maths to find angles and the lengths of edges in triangles. There are three main operations: sin, cos and tan, and these are used to convert the information you have about a triang...

Answered by Amy R. • Maths tutor

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