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https://vle.mathswatch.co.uk/images/questions/question18196.png

 Apr 20, 2020
 #1
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 Look at the data points graphed for the 18 year olds    at  x = 10 minutes    the number of 18 year olds is  30

                                                                                        at x = 20 minutes    the number of 18 year olds  is  20

                                                                                        at x = 30 min                                                        is 60 

                                                                                          continue with the other data points and add up all of the 18 y/o's

 

b.   Look at x = 30  for both of the graphs and find the

'y' values and see which is greater....

 

 Apr 20, 2020

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