Getting matched with level 30 or fresh players at ranked ?

This is getting really annoying , im at gold 3 right now im lv220 and i just keep getting matched in my ranked games with a level 30 guy who just started playing rankeds and literally knows nothing of the game , they are usually bronze/iron and the rest of the players are all gold + and maybe there is a plat iv also in the game . This costs us the game everytime just the low level player is totally useless knows nothing , probably building a wrong build for the champ he is playing and it is worse than playing 5v4 . I get it that it is not his fault that he is matched with us , but WHY the %%%% is he even matched with us ??
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