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5 female giraffes have a mean weight of x kg
7 male giraffes have a mean weight of y kg
Write down an expression, in terms of x and y, for the mean weight of all the giraffes.

 Feb 5, 2020
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Mean weight  =

 

[ 5x  + 7y ]

________

     12

 

 

cool cool cool

 Feb 5, 2020

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