Itai-itai disease (ã¤ã¿ã¤ã¤ã¿ã¤ç, itai-itai byÅ? ), (literally: ouch-ouch disease) was the first documented case of mass cadmium poisoning in the world in Toyama Prefecture, Japan in 1950. The cadmium poisoning caused softening of the bones and kidney failures.
Weighted grades are number or letter grades that are assigned a numerical advantage when calculating a grade point average, or GPA.
How to calculate your weighted grade. To calculate your weighted grade all you need to do is multiply the mark you got in each part of your class by the percentage it is worth towards your final mark. You do the same for each part of the class and then add the answers together.f you get 40% your final grade would be 70.1%. You can work out any permutation for this using the weighted grade calculator above (the top one). Just put 83 as your first mark and 70 as the % of final grade. On the second mark row put 30 in the % of final grade box.