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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.
- To work out an estimate we must start by rounding
Calculate the value of both x and y using the following 2 equations: 3x - 2y = 12 (1) and x - y = 3 (2)
Process of elimination:
Multiply equation 2 by 3 to get the same coefficent in front of x: 3x - 3y = 9 (3)
Subtract eq 3 from eq 1 to get: y = 3
