kgagyarko kgagyarko

22-02-2017
Mathematics

contestada

the mean weight of 8 girls is 55kg and the mean weight of a group of boys if 52kg. the mean weight of all the students is 53.2kg. how many boys are there?

Respuesta :

unicornlover80 unicornlover80

28-02-2017

add 55kg and 52 kg and 53.2 kg and divide by 8 and that will give you your answer

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