Aled organised a charity event to raise money for the local hospice. The event raised a total of £4800 but cost £240 to organise.
Give the cost of organising the event as a percentage of the total
raised.

111

step-by-step explanation:

b). 4320 have a nice day

a reflection across the x axis and a 90 degree rotation left and right.

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.