jasminesykes2007 jasminesykes2007 30-09-2022 Mathematics contestada 4 red bricks have a mean weight of 5 kg. 5 blue bricks have a mean weight of 9 kg. 1 green brick has a weight of 6 kg. Donna says, “The mean weight of the 10 bricks is less than 7 kg.” Donna is incorrect. Calculate the mean weight of the bricks.