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Maths
GCSE

A ladder 5m long is leaning up against a wall. The foot of the ladder is 3m from the wall. How high up the wall does the ladder reach?

Think about which mathematical theorem you might want to use for this question (Pythagoras: a2 + b2 = c2 )

Draw a diagram of the situation described, and write down...

Answered by Josie R. • Maths tutor
13129 Views

Solve the equation ((2x+3)/(x-4))-((2x-8)/(2x+1)) = 1 to 2 decimal places.

First, multiply by the denominators making sure to multiply on both sides of the equation and the other fraction. You should start this by multiplying through by one of the denominators and then by the ot...

Answered by Harry C. • Maths tutor
3052 Views

Paul organised an event for a charity. Each ticket for the event cost £19.95 Paul sold 395 tickets. Paul paid costs of £6000 He gave all money left to the charity. (a) Work out an estimate for the amount of money Paul gave to the charity.

This question asks us to estimate the amount of money Paul gave to Charity. 

  1. To work out an estimate we must start by rounding 
    Answered by Priti P. • Maths tutor
    15078 Views

Amy earns £6 for every hour she works Monday to Friday. She earns £8 for every hour she works on Saturday. One week Amy worked for 5 hours on Saturday - she earned £130 that week. How many hours did she work from Monday to Friday?

Amy worked for 5 hours on Saturday so she earned £8 x 5 = £40 on that day.

She earned £130 in total so we know she earned £130 - £40 = £90 working from Monday to F...

Answered by Hamza M. • Maths tutor
3703 Views

A cylinder has a circular face with a diameter of 10cm, and a body of length 30cm. Calculate the volume of the cylinder.

First recognise that the diameter is 10cm so the radius of the circle must be 5cm.

Next use the formula for the area of a circle, πr2, to work out the area of the circul...

Answered by Hamza M. • Maths tutor
5703 Views

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