one question that absolutely got me was finding the value of x in the question where you had to work out the mean and the ratio was 3:8 etc. - I'd love it if anybody could tell me what x equalled??
one question that absolutely got me was finding the value of x in the question where you had to work out the mean and the ratio was 3:8 etc. - I'd love it if anybody could tell me what x equalled??
thanks, my method was, find the mean of first then use ratio to get the mean of second and then put it into bla bla + x = mean... and then just got stuck at this point
you should of divided the mean by 3, then multiply by 8 to get the mean of the second square. Multiply that mean by the number of numbers in the second square, including X to get the total. Then the total - what numbers are in there will give you X
thanks, my method was, find the mean of first then use ratio to get the mean of second and then put it into bla bla + x = mean... and then just got stuck at this point